bluuebunny/crossref_metadata_2025_split huggingface dataset:
Versorgungsrealität der Bronchoskopie in Deutschland – eine Umfrage der Deutschen Gesellschaft für Pneumologie und Beatmungsmedizin (DGP)
Authors: Boschung Kyrill , Hetzel Jürgen , Hübner Ralf-Harto , Pohl Frank , Treml Marcel , Darwiche Kaid , Eberhardt Ralf , Holland Angelique , Bauer Torsten , Randerath Winfried , Windisch Wolfram , Hagmeyer Lars 
Published: December 2024

Zusammenfassung
Ziel Aufgrund technischer Innovationen und des gesundheitsökonomischen Drucks hat sich die Bronchoskopie in den letzten Jahren deutlich gewandelt. Es gibt wenig aktuelle Informationen zur Versorgungsrealität in der Bronchoskopie in Deutschland.
Methodik Im September 2022 wurden die bronchoskopisch tätigen Standorte in einer anonymisierten Erhebung der DGP mit 33 Fragen systematisch zu Merkmalen der Struktur- und Prozessqualität befragt. Die erhobenen Daten wurden deskriptiv ausgewertet.
Ergebnisse Von 196 teilnehmenden wurden an 180 Standorten regelmäßig Bronchoskopien durchgeführt. Ein Großteil der Standorte sind Krankenhäuser der Grund- und Regelversorgung (n=51) sowie Maximalversorger (n=43) (Leistungsspektrum: diagnostische Bronchoskopie, 80% inklusive der endobronchialen ultraschallgesteuerten transbronchialen Nadelaspiration [EBUS-TBNA]). Für den Akutfall sind erweiterte Behandlungsmöglichkeiten an >90% dieser Standorte sichergestellt. Universitätskliniken (n=24) und Lungenfachkliniken (n=35) erbringen darüber hinaus aufwendigere diagnostische Verfahren sowie therapeutisch-interventionelle Techniken. Dabei sind die Leistungszahlen an den Lungenfachkliniken signifikant höher (Lungenfachkliniken: 62%: >2000 Bronchoskopien/Jahr; Unikliniken: 25%: >2000 Bronchoskopien/Jahr; p<0,001). An den Praxisstandorten (n=21, teils kooperativ an Kliniken) werden <500 Bronchoskopien/Jahr durchgeführt.Am Standort sind in 97% der Kliniken Intensivstationen vorhanden. 88% der Kliniken verfügen im Bronchoskopieraum über eine Durchleuchtungsmöglichkeit. Für die Sedierung werden bevorzugt Propofol (91%) und/oder Midazolam (62%) verwendet. An 21% der Standorte werden >200 Bronchoskopien/Jahr unter Beatmung durchgeführt. BAL und transbronchiale Zangenbiopsien erfolgen überwiegend über den nasalen oder oralen Zugang, EBUS-TBNA über einen Bronchoskopietubus oder den oralen Zugang, die EBUS-Minisonde/Navigation, komplexere Interventionen über das starre Rohr oder einen Bronchoskopietubus. Bei nach ASA >2 klassifizierten Patienten ziehen 46% der klinischen Standorte einen zweiten Arzt hinzu, 47% der Standorte bei einer ASA-Klassifikation >3.
Schlussfolgerung Ein Großteil der Bronchoskopien wird von pneumologischen Abteilungen an Krankenhäusern der Grund- und Regelversorgung sowie der Maximalversorgung durchgeführt. Für aufwendigere Verfahren ist die Kooperation mit Kliniken mit ausgewiesenem Schwerpunkt im Bereich der Bronchologie und Interventionellen Pneumologie, wie er häufig an Universitätskliniken oder Lungenfachkliniken angeboten wird, sinnvoll.
Empfehlungen zu Trainingskursen in der Bronchoskopie – Update 2024
Authors: Hagmeyer Lars , Hübner Ralf-Harto , Darwiche Kaid , Eberhardt Ralf , Gebhardt Andreas , Herth Felix , Holland Angelique , Krist Joanna , Pizarro Carmen , Zimmermann Gregor , Wagner Manfred 
Published: December 2024

ZusammenfassungBronchoskopiekurse sollten einen festen Bestandteil der bronchoskopischen Ausbildung darstellen. Kursabsolventen sollen nach dem Bronchoskopiekurs mit den Indikationsfeldern, Voraussetzungen und technischen Möglichkeiten der Bronchoskopie vertraut sein. Neben theoretischen Inhalten werden in Kleingruppen am Bronchoskopiemodell unter Supervision praktische bronchoskopische Fertigkeiten vermittelt und am Simulationsmodell trainiert. Die Grundlage der vermittelten Inhalte sind dabei die aktuellen Leitlinien und Empfehlungen der DGP sowie die geltenden Richtlinien und KRINKO-Empfehlungen. Die Vereinheitlichung zentraler Kurselemente dient der flächendeckenden Qualitätssicherung, dennoch sollen lokale standortspezifische Schwerpunktsetzungen explizit unterstützt werden.
Posttransplant Erythrocytosis after Allogenic Stem Cell Transplant for Acute Myeloid Leukemia: A Case Report and Review of Literature
Authors: Abraham Sherry S. , Soman Saikumar , Ajish Akshaya B. , Nair Sreejith G. 
Published: December 2024

AbstractPostallogenic hematopoietic stem cell transplant (post-allo-HSCT) erythrocytosis is a rare phenomenon mostly seen in cases of aplastic anemia. It is a well-known complication in renal transplant recipients. Clinical evaluation, serum erythropoietin (EPO) level, and Janus kinase 2 (JAK 2) mutation are important to differentiate between primary and secondary erythrocytoses. Treatment aims at normalizing the clinical, physical, and laboratory parameters and minimizing thromboembolic complications. The majority of the patients have a favorable outcome with phlebotomies and low-dose aspirin. We report a rare case of post-allo-HSCT erythrocytosis in a patient who underwent related allo-HSCT for acute myeloid leukemia.
Unveiling task value and self-regulated language learning strategies among Japanese learners of English
Authors: Fukuda Akiko 
Published: December 2024

Abstract
The present study explored different types of task value and their associations with the use of self-regulated
learning (SRL) strategies across various English as a foreign language (EFL) learning scenarios. The application of SRL strategies
is supported by motivational beliefs, including task value. Although prior research has demonstrated the importance of
motivational beliefs in SRL, there remains a need for further clarification regarding the characteristics and role of task value,
particularly the cost (i.e., a negative aspect of task value) in relation to SRL. Furthermore, given the context-dependent nature
of SRL, both values and strategies should be adapted to specific learning environments. In this study, 12 Japanese EFL university
students participated in two rounds of semi-structured interviews. The first session focused on their English learning
experiences, expectations, and perceptions of the value and cost associated with learning English. In the second session, they
roleplayed four scenarios — a homework assignment, an in-class task, preparation for an English certification exam, and learning
for personal growth — while using a think-aloud protocol to express their thoughts and feelings. Follow-up interviews were
conducted after each roleplay. Thematic analysis was used to identify the participants’ values and costs and to analyze their use
of SRL strategies. The findings revealed that participants concurrently hold multiple types of task value, which were tied to and
shaped by their past learning experiences. Several patterns were also identified for SRL strategies in each scenario,
corresponding to task value.
The readability of books for immersion schools
Authors: Dressler Roswita , Nuss Bernd , Mueller Katherine 
Published: December 2024

Abstract
Few books are available to support reading instruction in minority language immersion programs. Since North
American teachers provide children with a choice of books scaffolded in difficulty and suited to their interests, they must resort
to creating or adapting their own minority language materials, networking, or spending hours online or in bookstores. A more
systematic approach would be based on an interdisciplinary understanding of the concept of readability. We focus on German as a
minority language in North America and examined research published in both German and English to develop a conceptual framework of
readability as comprising text complexity, context, and literary aspects. Using this framework, we conceptualize a research
program for investigating readability of books in minority languages. This research program would be language-specific, but
adaptable to other minority languages, thereby serving as a call to action for researchers interested in the readability of
books.
Effects of variable blowouts on aerodynamic loss reduction performance of compressor bionic blades
Authors: Li KeXin , He Xing , Jia Yuhao , Xia Ge , Lu Hang 
Published: December 2024

Abstract
A passive flow control method inspired by blowouts was employed to eliminate flow separation and reduce the losses associated with higher compressor loads. The flow characteristics of a dimple-shaped cascade were investigated by implementing bionic blowout dimples on a blade suction surface and the loss-generation mechanism was analyzed. First, the reliability of the numerical simulation was confirmed via experimental validation. Subsequently, biomimetic principles were applied to arrange dimples on the suction surface of cascade blades, and the effects of several blowouts were analyzed. The analysis revealed that vortices within the dimples induced external fluid into the dimples, thereby increasing the turbulent kinetic energy of the external fluid and improving wall-adjacent flow adherence. The bionic-blowout variant dimples created a ‘rolling bearing’ effect that reduced frictional losses and effectively controlled flow separation. Within a certain blowout range, the bionic blowout variant dimples significantly improved the flow characteristics. At a −6° angle of attack, the total pressure loss of the dimple-structured cascade decreased by 35.85%, and the pressure ratio increased by 2.35%. The bionic blowout-variant dimples on the blade suction surface exhibited a three-dimensional disturbance effect. The induced vortex structures regulated the boundary layer transition and suppressed the formation of laminar separation bubbles, thereby enhancing the flow conditions near the corner region.
Underwater-MLA: lightweight aggregated underwater object detection network based on multi-branches for embedded deployment
Authors: Chen Xiao , Fan Chenye , Shi Jingjing , Chen Xingwu , Wang Haiyan 
Published: December 2024

Abstract
In response to the limited memory and computing capabilities of underwater devices, as well as the various target leakage issues caused by complex underwater environments, we propose a lightweight aggregation underwater target detection algorithm called multi-branch lightweight aggregate networks underwater (underwater-MLA). The algorithm designs a new mixed convolutional fusion with contextual attention module. It constructs a multi-branch structure that integrates mixed convolutions and contextual attention to enhance the feature extraction capability for complex underwater targets. Additionally, to address the shortcomings of information loss and significant target localization errors during detection, we propose the SPPELAN efficient aggregation module to improve the model’s perception of target localization and background discrimination ability. Furthermore, targeting the issues of blurred boundaries and sample imbalance in underwater targets, we introduce the Focaler-IoU module to focus more on the distribution of sample boundaries. Finally, we deploy the underwater-MLA algorithm on a Raspberry Pi 4B development board and utilize a camera for real-time underwater target detection. Simulation results on the URPC dataset demonstrate that this method achieves an 85.86% detection accuracy, a 2.94% improvement over the original architecture. The computational complexity and parameter count are reduced by 32.94% and 11.31%, respectively. Moreover, it achieves satisfactory target detection performance on embedded terminals. Link to open-source code: https://github.com/fanchenye/fanchenye.
Quenching for axisymmetric hypersurfaces under forced mean curvature flows
Authors: Mitake Hiroyoshi , Oka Yusuke , Tran Hung V 
Published: December 2024

Abstract
Here, we study the motion of axisymmetric hypersurfaces

{

Γ
t

}

t
⩾
0

evolved by forced mean curvature flows in the periodic setting. We establish conditions that quenching occurs or does not occur in terms of the initial data and forcing term. We also study the locations where the quenching happens in some special cases.
Inter-valley phonon scattering limited performance of n-channel WS2 monolayer transistors
Authors: Alam Khairul 
Published: December 2024

Abstract
In addition to the K conduction band valley of monolayer WS2, there is a remote Q valley located 0.1 eV above the K valley. We investigate the effects of intra- and inter-valley phonon scattering, including

K
↔
Q

inter-valley scattering, on monolayer WS2 device performance using a recursive Green’s function algorithm and the Büttiker probe scattering model. Our analysis reveals that ballisticity drops to 54% when only intra-valley phonon scattering is considered. When inter-valley phonon scattering (excluding

K
↔
Q

inter-valley scattering) is added, ballisticity decreases to 42%. This further declines to 12% with the inclusion of

K
↔
Q

inter-valley scatterings. Similarly, low-field mobility values decrease successively from 395 cm

2

(
V
⋅
s
)

−
1

to 223 cm

2

(
V
⋅
s
)

−
1

and then to 110 cm

2

(
V
⋅
s
)

−
1

at a sheet density of 109 cm−2. The primary scattering mechanism responsible for this degradation is

K
→
Q

inter-valley acoustic phonon scattering, characterized by a high deformation potential of

7.3
×

10
8

eV

cm

−
1

and a low energy of 16.76 meV. Additionally,

K
→
Q

inter-valley scattering significantly populates the Q valley, which presents a higher potential barrier in the on-state conduction band profile, resulting in a lower on-state current. Our analysis shows that approximately 40% of the on-state total power dissipated within the device is due to phonon scattering effects, with the remainder being released through thermalization in the device’s contacts.
Downhole vibration analysis based on near bit measurement data
Authors: Pang Haibo , Xu Zhaohui , Fang Chao , Fan Jinchao , Lin Zili 
Published: December 2024

Abstract
The efficiency of down-hole drilling has always been a focus of attention in real time drilling field. With the number of deep and ultra deep wells increasing, real time drilling environment has become exceptionally complex, and the decrease of drilling efficiency has always been a difficult problem that troubles drilling field construction. The working status of bits is closely related to factors such as drilling parameters, drilling encountered lithology, and drilling tool wear. However, due to the limited working conditions underground, it is difficult to evaluate the working status of bit in a timely manner. In the article, by analyzing the near bit data measured by down-hole tools, we explore the vibration of drilling tools under different drilling conditions, analyze the vibration intensity of drilling tools at different time periods, statistically analyze the vibration types and intensities of drilling tools, and explore the correlation between drilling parameters, analyzing the impact of drilling parameters on drilling tool vibration.
Study on laser induced breakdown spectrum analysis of lithium in drilling cuttings
Authors: Min Mao , Pengbo Ni , Li Zhongbing , Yu Yi 
Published: December 2024

Abstract
The elements of drilling cuttings are crucial information to be obtained in the downhole measurement while drilling for eological interpretation, resource assessment, and development decisions. However, it is difficult to achieve the analysis of light elements within natrium (Na) by the existing elemental analysis technology. So this paper studies the analysis of lithium by the laser-induced breakdown spectroscopy (LIBS) to promote the discovery, exploration and development of lithium resources. The spectra of 20 lithium-containing ore compositional analysis standards are collected to discuss the impact of the baseline correction methods such as the asymmetric least squares method (AsLS), adaptive iteratively reweighted penalized least squares method (airPLS), and asymmetrically reweighted penalized least squares method (arPLS), and the quantitative analysis models of multivariate linear regression (MLR), Bayesian regression (BPR) and Gaussian process regression (GPR), to verify the accuracy and reliability of the lithium analysis results. The results show that the baseline correction method can improve the analysis accuracy of lithium element, and the preferred AsLs+Gaussian regression is more suitable for the prediction of Li element concentration, with the correlation coefficient of 0.9300. As an effective strategy for high-precision prediction of lithium element concentration, it is applied to the drilling field data for the prediction of lithium element. This research provides an important theoretical support for the application of LIBS technology to lithium element analysis of drilling cutting.
Application of Integrated Directional and Guide Drilling Technology in Deep Coalbed Methane
Authors: Zhu Weixing , Wang Zhuang , Wu Dong , Lin Wang , Wang Yaxuan , Huang Kai , He Jiayu , Xue Hongzhi 
Published: December 2024

Abstract
Deep coalbed methane is characterized by deep burial, complex and diverse microstructures, significant lateral variations in reservoirs, and the development of internal interlayers. Current seismic exploration methods suffer from severe high-frequency signal attenuation in coal layers, resulting in low seismic resolution, which severely limits the precision of geological models for coalbed methane and the encounter rate of reservoirs in horizontal wells. Based on this, this paper introduces an integrated directional and guide drilling technology and applies it to horizontal well operation, achieving excellent results. Firstly, in the pre-drilling phase, we utilize well-seismic integrated reservoir and structural prediction techniques to meticulously characterize coal seam distribution patterns and subtle geological structures. This enables the construction of a geo-steering model specifically for horizontal wells, optimizing the locations of target points, designing well trajectories, and selecting the optimal configuration of geological steering tools. Secondly, in the drilling operation stage, this system iteratively refines the depth-domain seismic section based on real-time measure while drilling (for short MWD). This process reconstructs the geological steering model, precisely predicts the position of coal seams at the bottom of the well, continuously optimizes the well trajectory design in real-time, and ultimately generates geo-steering instructions. Finally, after the completion of drilling operations, the system evaluates the coal seam area and iteratively refines the three-dimensional geological model. This process provides technical support for the deployment of the next well and the design of the target trajectory. After verification through multiple horizontal wells targeting deep coalbed methane, the guiding model reconstructed by this technology has achieved a fitting rate of over 95%, significantly enhancing the reservoir encounter rate to above 90%. This remarkable achievement underscores the technology’s precision and effectiveness in accurately guiding drilling operations toward targeted coal seam reservoirs.
Progress in multiphase flow measurement research and its application prospects in the chad digital oilfield
Authors: Geng Jie 
Published: December 2024

Abstract
In the field of oilfield development, the measurement of mixed-phase flow media has always been a hot and difficult issue. Multiphase flow technology is useful for measuring drilling flowback fluid, as it can help engineers analyse the geological structure during the drilling process. This paper summarizes the current status of domestic and international online multiphase flow measurement, introduces new types of equipment and methods for online multiphase flow measurement in China in recent years, and on the basis of analyzing the current status of production measurement in the Chad oilfield, proposes measures and approaches for the localization and digitalization of the Chad oilfield production measurement system. This provides ideas to help Chinese technology, equipment and solutions go global in the oil and gas multiphase flow measurement field.
Investigation of Pressure Pulsation and Vibration of the Internally Geared Screw Compressor
Authors: Zhu J , Read M , Kovacevic A , Sishtla V 
Published: December 2024

Abstract
The Internally Geared Screw Machine (IGSM) is a relatively novel and promising type of positive displacement compressor concept that takes inspiration from classic gerotor pumps. The IGSM uses two rotors rotating in the same direction about parallel axes while maintaining continuous contact between both rotors which isolates several working chambers. By using ported end plate, the IGSM can determine the timing of the fluid entering and exiting the working chamber. There are several key advantages to the IGSM over traditional twin-screw compressors including reduction of the rotor to casting leakage, elimination of the blow hole area, reduction in sliding velocity at the point of contact, and a uniform circumferential rotor temperature profile. Although there is some research regarding the geometric profiling and chamber modeling of this type of machine, there is no research currently available on the pressure pulsation and vibration characteristics of the IGSM. The purpose of this paper is to provide an initial look into the pressure pulsation and vibration characteristics of the IGSM and how they differ from that of a traditional twin-screw machine. By explicating the key differences between the IGSM and the industry standard twin-screw compressor, this paper aims to better understand an important yet underdeveloped area of IGSM design.
Astigmatism Quantification for Depth Localization of Bubbles and Tracers across Curved Surfaces
Authors: Lange H , Sax C , Brümmer A , Kriegseis J 
Published: December 2024

Abstract
The present combined theoretical/experimental study addresses the impact of astigmatism on the two-phase flow diagnostics across the curved surfaces of liquid test-rig containments. In the present context, the target application is the two phase leakage-flow diagnostics across the annular housing gaps of oil-injected rotary positive displacement compressors (RPDC). Earlier studies by the authors identified the Defocusing Particle Tracking Velocimetry (DPTV) and Interferometric Particle Imaging (IPI) as particularly promising combination of flow measurement techniques to investigate the liquid and disperse gas phases inside the annular housing gap of RPDCs. The test-rig-specific influence of astigmatism on the resulting optical transfer function for a quantitative evaluation of the recorded defocused particle images (PI) is first compared to the theoretically derived circular PI diameter upon pure defocussing and subsequently tested for both classes of PIs, i.e DPTV and IPI. To mimic the optical configuration of optically accessible lateral surfaces of typical RPDC test rigs, a circular beaker glass (CBG) of comparable diameter is chosen for the experimental campaign. The results are discussed and future efforts for advanced PI-evaluation strategies are outlined on the grounds of the drawn conclusions.