bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Pilot Standardized Simulation-Based Mechanical Ventilation Curriculum Targeting Pulmonary and Critical Care Medicine and Critical Care Medicine Fellows
Authors: Pervaiz Amina , Daoud Asil , Alchakaki Abdulrazak , Ganti Shyam , Venkat Divya , Lee Sarah , Sankari Abdulghani 
Published: October 2023

Abstract
Introduction The mastery of mechanical ventilation (MV) management is challenging, as it requires the integration of physiological and technological knowledge with critical thinking. Our aim was to create a standardized curriculum with assessment tools based on evidence-based practices to identify the skill deficit and improve knowledge in MV management.
Methods For 3 years, 3 hours of standardized curriculum for each first-year pulmonary critical care medicine (PCCM) and critical care medicine (CCM) fellows was integrated into the orientation (chronologically): (1) a baseline knowledge pretest; (2) a 1-hour one-on-one case-based simulation session with debriefing. A 34-item competency checklist was used to assess critically thinking and skills and guide the debriefing; (3) a 1-hour group didactic on respiratory mechanics and physiology; (4) a 45-minute hands-on session in small groups of one to three fellows for basic knobology, waveforms, and various modes of mechanical ventilators; (5) a 15-minute group bedside teaching of vented patients covering topics such as techniques to alleviate dyssynchrony and advanced ventilator modes; (6) a one-on-one simulation reassessment session; (7) a knowledge posttest. Fellows' performances at baseline, 1-month posttest, and end-of-first year post-test were compared.
Results Fellows (n = 24) demonstrated significant improvement at 1-month posttest in knowledge (54.2% ± 11.0 vs. 76.6 ± 11.7%, p < 0.001) and MV competency (40.7 ± 11.0% vs. 69.7 ± 9.3%, p < 0.001), compared with pretest. These improvements were retained at the end-of-year reassessments (knowledge 75.1 ± 14.5% and MV competency 85.5 ± 8.7%; p < 0.001).
Conclusion Standardized simulation-based MV curriculum may improve the medical knowledge competency, and confidence of first-year PCCM and CCM fellows toward MV management before encountering actual ventilated patients.
A Rare Occurrence of Solid Gynecological Malignancy Synchronous with Hematological Malignancy: Rare Case and Review of Literature
Authors: Gupta Rubi , Dave Pariseema , Patel Bijal , Shukur Remi Abdul 
Published: October 2023

AbstractA synchronous solid and hematological malignancy is an uncommon condition in which a patient develops two or more primary cancers, one of which is a solid malignancy and the other one is a hematological malignancy, within 6 months of primary cancer diagnosis. The most common histology in solid malignancies is gastrointestinal adenocarcinoma, which coexists with the lymphoma subtype diffuse large B-cell lymphoma (DLBCL). Here, we report an extremely rare combination of serous carcinoma of the ovary synchronous with lymphoma of DLBCL subtype. A woman aged 52 years presented with an abdominal mass and abdominal pain for a short duration of 15 days. She was evaluated using clinical, radiological, and biochemical parameters. She was diagnosed with non-Hodgkin lymphoma by tru-cut biopsy from a bony lytic lesion and ovarian cancer by staging laparotomy. R-CHOP (rituximab, cyclophosphamide, doxorubicin hydrochloride, vincristine, and prednisolone) chemotherapy for lymphoma and staging laparotomy for persistent adnexal mass resulted in complete remission of both ovarian cancer and lymphoma. She received paclitaxel and carboplatin-based postoperative chemotherapy as an adjuvant for ovarian cancer.
Functional MRI for Acute Covert Consciousness: Emerging Data and Implementation Case Series
Authors: Boerwinkle Varina L. , Gillette Kirsten , Rubinos Clio A. , Broman-Fulks Jordan , Aseem Fazila , DeHoff Grace K. , Arhin Martin , Cediel Emilio , Strohm Tamara 
Published: October 2023

AbstractAlthough research studies have begun to demonstrate relationships between disorders of consciousness and brain network biomarkers, there are limited data on the practical aspects of obtaining such network biomarkers to potentially guide care. As the state of knowledge continues to evolve, guidelines from professional societies such as the American and European Academies of Neurology and many experts have advocated that the risk–benefit ratio for the assessment of network biomarkers has begun to favor their application toward potentially detecting covert consciousness. Given the lack of detailed operationalization guidance and the context of the ethical implications, herein we offer a roadmap based on local institutional experience with the implementation of functional MRI in the neonatal, pediatric, and adult intensive care units of our local government-supported health system. We provide a case-based demonstrative approach intended to review the current literature and to assist with the initiation of such services at other facilities.
High-selectivity terahertz metamaterial nitric oxide sensor based on ZnTiO3 perovskite membrane
Authors: Wu Pei-Jung , Hung Jing-Ting , Hsieh Cho-Fan , Yang Chii-Rong , Yang Chan-Shan 
Published: October 2023

Human exhaled gases contain a wide range of volatile organic compounds, offering the potential for detecting physiological, cardiovascular, and endocrine disorders. For instance, nitric oxide (NO) concentration can be indicative of chronic obstructive pulmonary disease. Analyzing exhaled gases provides a noninvasive approach to disease detection without posing any risks to individuals. While electronic sensors have been developed over the past two decades for NO detection at high temperatures, few studies have explored optical detection in the ultraviolet to visible light range, which may have adverse effects on the skin. In this study, we designed a split-ring resonator metamaterial tailored for operation within the terahertz (THz) frequency range. Specifically, the metamaterial was designed to resonate at the NO frequency of 0.257 THz. To enhance gas absorption capacity, we incorporated a composite film layer consisting of ZnTiO3 and reduced graphene oxide onto the metamaterial. By sintering ZnTiO3 powder at different temperatures, we achieved an increase in component sensitivity (ΔT/T) from 2% to 16.4%. Overall, the proposed metamaterial holds promise for both physical monitoring applications and the development of wearable electronic devices.
Haters in the spotlight
Authors: Pahor de Maiti Kristina , Franza Jasmin , Fišer Darja 
Published: October 2023

AbstractThis study investigates the interplay between commenters’ gender and their language use in Slovene socially unacceptable Facebook comments by inspecting the frequency of opinion markers and impoliteness triggers, and the pragmatic functions of opinion markers which were investigated according to a newly developed typology. The analysis shows statistically significant differences between men and women in their formulation of opinions and use of impoliteness triggers. Comments written by men are characteristically formed as fact-like covert opinions and contain explicit impoliteness triggers (e.g., insults). Comments written by women are formed as overt opinions explicitly encoding subjectivity and include implicit impoliteness triggers (e.g., tropes). A common feature is the use of opinion markers as self-oriented face-saving devices. But while men use opinion markers to explicitly communicate their desire to save face, women use them to perform face-saving implicitly.
On the etymology and distribution of verb forms in Arabic-based pidgins
Authors: Louhichi Imed 
Published: October 2023

AbstractIn this paper, we add to the body of existing literature on Arabic-based pidgins. We focus on the verbal system because the structure of this phrasal category and how it is used in discourse remain inconclusive. For instance, while some claim these speakers prefer the imperfective form which is marked for male third person singular (e.g.y-iji‘3sg.m-come.ipf’), others claim it is the imperative that is most preferred (e.g.rūh‘2.sg.m-go.imp’). Equally, while some argue the choice between either verb forms is pragmatically motivated, others claim it is phonologically motivated. To add to this mix, a third group claims there is a systematic division of labor in that non-state verbs usually follow the prefixed type while the state verbs follow the unprefixed type.We evaluate these proposals. Analysis of ‘frog story’ narratives by 10 GPA speakers in the United Arab Emirates reveal the prefixed form to be the most preferred and this preference is influenced by the contriving of phonological, semantic, and pragmatic factors. Frequency as well as item-based analogy as understood within usage-based theories of learning provide a viable framework in which the apparent inconsistencies between the competing proposals are resolved.
On the microstructure of higher-dimensional Reissner–Nordström black holes in quantum regime
Authors: Masood A S Bukhari Syed , Pourhassan Behnam , Aounallah Houcine , Wang Li-Gang 
Published: October 2023

Abstract
Thermodynamic Riemannian geometry provides great insights into the microscopic structure of black holes (BHs). One such example is the Ruppeiner geometry which is the metric space comprising the second derivatives of entropy with respect to other extensive variables of the system. Reissner–Nordström black holes (RNBHs) are known to be endowed with a flat Ruppeiner geometry for all higher spacetime dimensions. However this holds true if one invokes classical gravity where the semi-classical Bekenstein–Hawking entropy best describes the thermodynamics of the system. If the much deeper quantum gravity and string theories entail modifications to BH entropy, this prompts the question whether the Ruppeiner flatness associated with higher dimensional RNBHs still persists. We investigate this problem by considering non-perturbative (exponential) and perturbative (logarithmic) modifications to BH entropy of a 5D RNBH. We find that while the case is so for larger (classical) geometries, the situation is radically altered for smaller (quantum) geometries. Namely, we show surprising emergence of multiple phase transitions that depend on the choice of extent of corrections to BH entropy and charge. Our consideration involves differentiated extremal and non-extremal geometric scales corresponding to the validity regime of corrections to entropy. More emphasis is laid on the exponential case as the contributions become highly non-trivial on small scales. An essential critical mass scale arises in this case that marks the onset of these phase transitions while the BH diminishes in size via Hawking evaporation. We contend that this critical value of mass perhaps best translates as the epoch of a classical to quantum BH phase transition.
Modeling of experimentally observed topological defects inside bulk polycrystals
Authors: Singh Siddharth , Liu He , Arora Rajat , Suter Robert M , Acharya Amit 
Published: October 2023

Abstract
A rigorous methodology is developed for computing elastic fields generated by experimentally observed defect structures within grains in a polycrystal that has undergone tensile extension. An example application is made using a near-field high energy x-ray diffraction microscope measurement of a zirconium sample that underwent

13.6
%

tensile extension from an initially well-annealed state. (Sub)grain boundary features are identified with apparent disclination line defects in them. The elastic fields of these features identified from the experiment are calculated.
Multistep optimization for the electrodeposited mixed perovskite FA1−y
Cs
y
PbBr
x
I3−x
solar cells
Authors: Xiang Yanhong , Zheng Ren , Li Chunhe , Ren Kuankuan , Ye Qiufeng , Shi Biyun , Liu Shiyan , Fang Zebo 
Published: October 2023

Abstract
The electrodeposition method has recently been developed for the fabrication of perovskite solar cells due to its potential advantages in commercial preparation. However, there is few studies on the preparation of perovskite solar cells by the electrodeposition method, especially on the perovskite FAPbI3-based solar cells. Herein, we fabricated the mixed perovskite FA1−y
Cs
y
PbBr
x
I3−x
solar cells by an optimized electrodeposition method, in which the electrodeposited PbO2 reacts directly with FAI and an appropriate amount of CsBr dopants. The corresponding solar cells display the best PCE of 4.97%. By regulating the growth temperature in the reaction between PbO2 and FAI/CsBr, the efficiency of the mixed perovskite solar cells can be promoted to 10.18%. These results illustrate that the element doping and growth environment regulation can optimize the quality of the perovskite films, thus promoting the efficiency of the perovskite solar cells. With further optimizing the growth process in the electrodeposition method, it is expected to open up a new commercial preparation route for the perovskite solar cells in the near future.
High temperature superconducting CORC cable with variable winding angles for low AC loss and high current carrying SMES system
Authors: Zheng Jinxing , Cheng Yuan , Li Ming , Liu Fei , Liu Xufeng , Liu Haiyang 
Published: October 2023

Abstract
Owing to the rising demand for enhanced high-current capacity within superconducting magnetic energy storage (SMES) system used in power grids, there is a growing focus on enhancing the current-carrying capability of SMES setups wound with conductor on round core (CORC) cables. However, it is crucial to note that the dissipation of AC losses in CORC cables during rapid charge and discharge cycles can substantially impact the safe operation of SMES. The CORC cable is crafted by spirally winding numerous ReBCO tapes around copper tubes. Even slight alterations in the winding angles of these tapes can result in shifts at current distribution across the ReBCO tapes, thus leading to differences in AC losses. Hence, the primary objective of this paper is to study the effect of varying winding angles of each ReBCO layer on AC loss. The adoption of variable angles results in the reduction of current flowing through the outermost tapes. And the AC losses in the outermost tapes happen to account for the majority of the total AC losses. Through simulations and experiments, it was observed that the AC loss in the CORC cable with variable angles (4 × 12, 25°–40°) was 25% lower than that in the case of fixed angles (3 × 11, 45°). These findings demonstrate a noteworthy downward trajectory in AC losses when variable angles are applied to the CORC cable. These insights hold significant value for the practical application of CORC cables within SMES systems.
Connector effects and reference plane influence in the N-Type connector
Authors: Gellersen F , Rausche F , Wissel A , Kuhlmann K 
Published: October 2023

Abstract
In this paper we outline the impact of mixing slotted N-type and slotless N-type connectors during a vector network analyzer calibration. We want to point out that making precise measurements of typical transfer standards, while using both N-type jack connectors is very difficult, because of the reference plane shift. We performed simulations of the two connector jack geometries to estimate the impact on measurements of devices under test with either plug or jack interface. The influence of mixing slotted and slotless connectors is then validated through simple measurements, which can be easily repeated in many labs. The results show that mixing of slotted and slotless jacks adds errors in the same order of magnitude sometimes reported as measurement uncertainties by national metrology institutes.
Numerical Simulation on Near-water-surface Skipping Motion of Trans-media Vehicle
Authors: Ma Wenxuan , Zhang Hangwei , Hu Ziye , Sa Haijing , Zhang Wenyi 
Published: October 2023

Abstract
When a trans-media vehicle impacts the water surface at a small angle, it will bounce and take off and then re-enter the water, which is called near-water-surface Skipping Motion. The study of this kind of movement is of great significance to the high maneuvering penetration of ships or aircraft near sea level. This paper adopted the method of numerical simulation, selected the SST k-ω turbulence model, combining the N-S equation and the six-degree-of-freedom (6DOF) algorithm, and used the overall dynamic grid technology to calculate the vehicle entry condition at speed of 50m/s, 100m/s, 150m/s &10°, 20°, 30° angle of attack, and the near-water-surface skipping motion characteristics of the vehicle were explored, which provided a reference for studying the high maneuvering motion of offshore plane trans-media vehicles.
The influence of the grooved fairing dimension on the AUVs for across-medium flight
Authors: Zhao Yu , Zhang Zhiyuan , Ma Guangsong , Chang Yukun , Guo Qianwei 
Published: October 2023

Abstract
The research object of this paper is the across medium (air and water) Autonomous Underwater Vehicles (AUVs) fairing. When the AUVs are flying in the air, for the purpose of protecting the detection equipment and reducing the air resistance, an ogive fairing is installed at the head of the aircraft. When the AUVs enter the water at a certain angle and speed after arriving at the destination, it is hoped that the fairing will be broken as much as possible, so that it does not affect the normal use of the detection equipment. Therefore, the influence of the dimension parameters of the fairing on the aerodynamic resistance is studied, and the influence of the groove and groove depth on the damage of the fairing after impact is also researched.
Numerical simulation of pulverized coal combustion in a 660MW tangentially fired boiler with fuel variation
Authors: Fang Jiuwen , Li Mingxin , Gao Baosheng , Zeng Yuqin , Zhang Lingcan , Qiao Jiawei , Jie Xinshi , Xiao Xianbin 
Published: October 2023

Abstract
To study the effects of various coal properties on the combustion characteristics during actual operation, and on the high temperature corrosion of the water wall. The paper presents a numerical simulation of a 660MW boiler using ANSYS FLUENT software. Three cases were investigated with various fuel properties: (1) the designed coal NO.1, (2) the non-designed coal NO.2 with high ash, high sulphur content and low volatile matter, (3) the blended fuel of coal NO.3with similar coal quality to the coal NO.1 and NO.4 with high sulphur content. Simulation results indicate that blended coal feeding can improve the combustion characteristics of poor-quality coals. It provides a theoretical reference for the actual operation of power plants with non-designed coals.
Study on jet formation and penetration performance of shaped charge with untypical double-cone titanium liner
Authors: Li Hongda , Li Peipei , Duan Hui , Zhang Zhili 
Published: October 2023

Abstract
Based on the platform of AUTODYN-2D code, the shaped charge with untypical double-cone titanium liner penetrating concrete targets are investigated. The influence of the titanium liner thickness and the height ratio of top cone on the jet tip-velocity and jet characteristics are analyzed. The titanium liner thickness, the height ratio of top cone, and the standoff affecting on the penetration performance of the concrete targets are also conducted. The numerical simulations indicated that, with increasing the titanium liner thickness, the jet tip-velocity gradually decreased, and the penetration depth of the concrete targets first increased and then decreased. When the height ratio of top cone was 0.5, the shaped charge with untypical double-cone titanium liner can combine the advantage of the small cone-angle liner and the large cone-angle liner, which will ensure the sufficient penetration depth and hole diameter. Furthermore, the shaped charge with untypical double-cone titanium liner can penetrate the concrete with a thickness of 1000mm at the standoff within a region between 2.0 CD and 2.5 CD.
Coupled CFD-DEM simulation of submarine landslide movement behavior
Authors: Li Ziyi , Song Wanqiang 
Published: October 2023

Abstract
Submarine landslide is a common disaster geological phenomenon in the ocean, which can be destructive to underwater infrastructure. Therefore, it is necessary to simulate the evolutionary behavior of submarine viscous landslides. In this paper, computational fluid dynamics (CFD) and discrete element method (DEM) are used to establish the fluid-solid coupling model of water-particle interaction. Firstly, the inter-particle cohesion model is introduced to train the coupled CFD-DEM analysis of the kinematic evolution process, and at the same time, two typical cases are carried out to verify the analysis. In the experimental simulation, the kinematic and morphological characteristics of the submarine landslide were simulated considering the viscous effect and initial velocity of the landslide, and the influence mechanism of the landslide motion and evolution process was investigated in depth. The results show that the coupled method can better simulate the motion of submarine landslide, and the viscous effect of the landslide has a significant influence on its kinematic and morphological characteristics, and the initial velocity also significantly affects the evolution and distribution characteristics of the particle flow field of each part of the landslide in the process of motion. This study is important for the simulation and effective prediction of the kinematic evolution process of real submarine landslides.
Numerical simulation of the leading edge bump for the cavity flow
Authors: Li Wei , Meng Dehong , Hong Junwu , Wang Hao 
Published: October 2023

Abstract
Based on the IDDES method, the M219 cavity is simulated in flux-mixed scheme, with the main purpose of studying the mechanism of the noise generation in the cavity flow and proposing corresponding suppression measures. The study mainly includes the grid resolution study and the numerical simulation of the leading edge bump. Through the comparative analysis with the experimental results provided by Henshaw et al. and the LES results from Haase et al. it is known that the different grids in this paper can all obtain the flow characteristics of the cavity flow, and the different grids show the convergence. The leading edge bump can significantly raise the shear layer, reduce the disturbance flowing into the cavity, and play a role in suppressing both the cavity tones and the broadband of the cavity flow.
Simulation on Evaporation and Cooling Characteristics of Spray System
Authors: Chang Tingting , Wang Chun , Wang Fuqing , Wang Kun 
Published: October 2023

Abstract
This study explored the evaporation and cooling characteristics of air pipeline spray based on computational fluid dynamics method. A geometric model of the pipeline air spray was constructed and meshed, and the Euler-Lagrange research method of the discrete phase model (DPM) was used to study the evaporation and cooling characteristics of the spray system. It was found that the length required for complete evaporation of droplets increased with the relative humidity. When the inlet temperature was 308K and the relative humidity was 40%, the evaporation length increased by 43.71% compared to when it was 20%. There was a negative correlation between the inlet temperature and the evaporation length, and when the relative humidity was 30%, the evaporation length at an inlet temperature of 323K decreased by 1.55m compared to when it was 313K. After spraying, the air temperature gradually decreased along the length of the pipe, and the cooling effect decreased as the relative humidity of the inlet air increased. When the inlet temperature was 308K and the relative humidity was 40%, the outlet temperature was 4.39K higher than when it was 20%, and the cooling effect increased as the inlet air temperature increased. When the relative humidity of the inlet air was 30%, the temperature drop at the outlet at an inlet temperature of 323K was 1.93K higher than when it was 313K.