bluuebunny/crossref_metadata_2025_split huggingface dataset:
On real Calabi–Yau threefolds twisted by a section
Authors: Matessi Diego 
Published: December 2023

AbstractWe study the mod 2 cohomology of real Calabi–Yau threefolds given by real structures that preserve the torus fibrations constructed by Gross. We extend the results of Castaño–Bernard–Matessi and Arguz–Prince to the case of real structures twisted by a Lagrangian section. In particular, we find exact sequences linking the cohomology of the real Calabi–Yau with the cohomology of the complex one. Applying Strominger–Yau–Zaslow mirror symmetry, we show that the connecting homomorphism is determined by a “twisted squaring of divisors” in the mirror Calabi–Yau, that is, by where is a divisor in the mirror and is the divisor mirror to the twisting section. We use this to find an example of a connected ‐real quintic threefold.
Rates of mixing for the measure of maximal entropy of dispersing billiard maps
Authors: Demers Mark F. , Korepanov Alexey 
Published: December 2023

AbstractIn a recent work, Baladi and Demers constructed a measure of maximal entropy for finite horizon dispersing billiard maps and proved that it is unique, mixing and moreover Bernoulli. We show that this measure enjoys natural probabilistic properties for Hölder continuous observables, such as at least polynomial decay of correlations and the Central Limit Theorem. The results of Baladi and Demers are subject to a condition of sparse recurrence to singularities. We use a similar and slightly stronger condition, and it has a direct effect on our rate of decay of correlations. For billiard tables with bounded complexity (a property conjectured to be generic), we show that the sparse recurrence condition is always satisfied and the correlations decay at a super‐polynomial rate.
Design and Manufacture Method of Aviation Face Gear With High Load-Bearing Based on Gear Skiving Process
Authors: Xu Man , Han Xinghui , Zheng Fangyan , Hua Lin , Zeng Yan 
Published: December 2023

Abstract
Face gear drive has been widely investigated in the aviation field as a power split device on the helicopter main reducer. However, high-speed and heavy-load condition makes the face gear prone to tooth surface pitting, leading to deterioration of transmission performance. To improve the load-bearing capacity of face gear, this paper proposes a design and modification method based on gear skiving process for face gear drives. First, gear skiving mathematical models for a face gear pair are established, and a continuously profile-shifted modification method is presented based on these mathematical models. Then, the load-bearing capacity of the modified face gear pair is minutely analyzed and discussed through contact analysis. The contact stress of the modified face gear is reduced by 47.78% on the right side and 41.1% on the left side compared with an unmodified face gear. Finally, gear skiving experiments and meshing performance tests of face gear pairs are conducted. The measurement results show consistency with the calculation results. Thus, the proposed design and continuously profile-shifted modification method based on the gear skiving process is feasible and contributes to load-bearing capacity improvement.
Molten Salt Pump Journal-Bearings Dynamic Characteristics Under Hydrodynamic Lubrication Conditions
Authors: Liu Yuqi , Chen Minghui , Che Shuai , Burak Adam 
Published: December 2023

Abstract
A reliable high-temperature molten salt pump is critical for the development of Fluoride-salt-cooled, High-temperature Reactors (FHRs). By supporting the rotating journal, the appropriate journal bearing can ensure that the high-temperature molten salt pump runs smoothly and efficiently in the high-temperature fluoride salt over a long period of time. However, many bearing candidates served well for only a short period and experienced several issues. Moreover, the alignment of the molten salt pump journal bearings is a key factor for the molten salt pump's long-term steady running. In the long-term operation, a misalignment in the journal bearing can result in vibrations and excessive wear on the bearing surface of the molten salt pump. The journal bearing dynamic characteristics can be used to accurately assess the journal misalignment. Therefore, it is necessary to investigate the detailed journal-bearing dynamic behavior under the high-temperature hydrodynamic fluoride salt lubrication conditions for FHR applications. In this study, a small amplitude vibration is superimposed on a steady-running journal bearing to simulate the molten salt operating conditions. A Fortran 90 code has been written for the journal-bearing dynamic behavior analysis. The code was verified using the numerical data reported in the literature. The code is then employed to predict the dynamic coefficients of high-temperature fluoride salt hydrodynamic lubricated journal-bearing with various Sommerfeld numbers. These journal-bearing dynamic coefficients can be used to provide guidelines in the design of molten salt pumps.
Computationally Efficient Workflow for Conjugate Heat Transfer With Large Eddy Simulation for Gas Turbine Combustors
Authors: Verma Ishan , Prasad Sudhanshu , Zore Krishna , Shrivastava Sourabh 
Published: December 2023

Abstract
Typical gas turbine combustor (GTC) and high-pressure turbine stage generally employs 10,000 to 100,000 small passages of cooling holes. Such an arrangement protects the solid walls through impingement and effusion cooling. The former provides solid wall internal cooling, and the latter helps to reduce the metal temperature by developing a thin film around it. High-fidelity simulations are primarily utilized in the industry such that accurate prediction from numerical tools can aid advancement in the performance of such machines. In this paper, a numerical study using ansys fluent has been conducted with large eddy simulation (LES), conjugate heat transfer (CHT), and radiation to explore the relative benefits of implicit and explicit fluid–solid thermal couplings. The simulations of LES with CHT are performed for well-documented experiments of heated nozzle exhaust passing over a film-cooled plate (Wernet et al., 2020, “PIV and Rotational Raman-Based Temperature Measurements for CFD Validation of a Perforated Plate Cooling Flow: Part I,” AIAA 2020-1230, Session, AIAA Scitech 2020 Forum, Orlando, FL, Jan. 6–10, 2020). The accuracy of the modeling approach is assessed by comparing CHT predictions of fluid velocity and solid-plate temperatures with experiments. Acceleration techniques for LES–CHT simulations are explored in this paper with an emphasis on thermal coupling, radiation, etc. The effects of mesh sensitivity and flow solution approach are presented in detail. LES–CHT results generally match the experiments at various blowing ratios both qualitatively and quantitatively. The comparisons in the paper allow the selection of best practices for CHT modeling in GTC. A generic combustor model with effusion cooling hole arrays is used in the paper to establish the workflow for modeling LES with CHT in the industrial-type combustor. Various acceleration techniques are utilized to show an overall improvement in solution performance with the same level of accuracy.
Analytical Method for Production Forecasting During Boundary-Dominated Flow in Unconventional Volatile Oil Reservoirs Using Single-Phase Analogy
Authors: Luo Le , Wei Shihao , Duan Yonggang , Wang Deqiang 
Published: December 2023

Abstract
This paper presents an analytical methodology for production forecasting of wells exhibiting boundary-dominated flow in unconventional volatile oil reservoirs. An analytical model using single-phase analogy is established to predict the production rate of a multi-fractured horizontal well under multiphase flow. Pseudo-variables are employed to linearize governing differential flow equations. Therefore, the analytical model for efficiently handling multiphase flow is essentially an advanced adaptation of existing single-phase models, in which we derive new multiphase fluid properties. To calculate the pseudo-variables accurately, we summarize accessible methods for the determination of saturation–pressure (S–P) relation and further provide an appropriate way to calculate multiphase pseudo-variables in unconventional volatile oil reservoirs based on simulation results. The simulation study indicates that the S–P relation given by constant volume depletion data for near-critical volatile oils leads to satisfactory results, and the S–P relation derived from the tank-type model is appropriate for ordinary volatile oils. The analytical solution and associated methods were validated through comparison with results from a compositional simulator; the excellent agreement during boundary-dominated flow demonstrated the accuracy of the analytical methodology. The analytical methodology can greatly reduce computation and is justified to make production forecasting in unconventional volatile oil reservoirs, this tractable methodology should be attractive to the industry.
Intervention Treatment for Anxiety and Depression-Induced Emotional Disorders in College Students: Mindfulness-Based Stress Reduction
Authors: Zhang Lili 
Published: December 2023

Abstract
The objective of this study was to investigate the effects of mindfulness-based stress reduction (MBSR) on relieving symptoms of emotional disorders caused by anxiety and depression in college students. Fifty college students with generalized anxiety disorder 7-item (GAD-7) scale scores &gt;7 and self-rating depression scale (SDS) scores ≥50 were randomly divided into a blank group and an MBSR group. The MBSR group completed an eight-week training program, which included activities such as breath awareness and body scanning. The GAD-7 scale, SDS, Pittsburgh sleep quality index (PSQI), and five-facet mindfulness questionnaire (FFMQ) scores were compared between the two groups before and after the experiment. After the experiment, the MBSR group showed a significant improvement in mindfulness levels as it had a FFMQ score of 124.64±10.72 (p &lt; 0.05 compared to the pre-experiment and blank group). The GAD-7 scale score was 5.46±2.98, and the SDS score was 45.32 ± 6.01, indicating that both anxiety and depression symptoms were relieved. The sleep quality improved as the PSQI score decreased to 5.26 ± 1.88 (p &lt; 0.05 compared to the pre-experiment and blank group). MBSR is beneficial in reducing anxiety and depression among college students, improving sleep quality, and has a certain effect on symptoms of emotional disorders. It can be promoted and applied in practice.
Genome characterization of a Korean isolate of porcine epidemic diarrhea virus
Authors: Kim Dae-Min , Moon Sung-Hyun , Kim Seung-Chai , Lee Taek Geun , Cho Ho-Seong , Tark Dongseob 
Published: December 2023

ABSTRACT
Porcine epidemic diarrhea (PED) outbreaks occur annually in the Republic of Korea. The complete genome sequence of the PED virus isolate CKK1-1 obtained from an infected pig was determined. The genome is 28,037 nt long, excluding the poly(A) tail, and contains seven open reading frames flanked by two untranslated regions.
Complete genome sequence of bean common mosaic virus from black bean in Vietnam
Authors: Neriya Yutaro , Kimpara Nami , Suzuki Tomohiro , Nguyen Huy Duc , Nishigawa Hisashi 
Published: December 2023

ABSTRACT
This is a report of a complete genome sequence of bean common mosaic virus in Vietnam. This virus shares around 99% nucleotide identity with a Nepal isolate.
Insight into the adaptation mechanisms of high hydrostatic pressure in physiology and metabolism of hadal fungi from the deepest ocean sediment
Authors: Zhong Maosheng , Li Yongqi , Deng Ludan , Fang Jiasong , Yu Xi 
Published: December 2023

ABSTRACT

High hydrostatic pressure (HHP) influences the life processes of organisms living at depth in the oceans. While filamentous fungi are one of the essential members of deep-sea microorganisms, few works have explored their piezotolerance to HHP. Here, we obtained three homogeneous
Aspergillus sydowii
from terrestrial, shallow, and hadal areas, respectively, to compare their pressure resistance. A set of all-around evaluation methods including determination of growth rate, metabolic activity, and microscopic staining observation was established and indicated that
A. sydowii
DM1 from the hadal area displayed significant piezotolerance. Global analysis of transcriptome data under elevated HHP revealed that
A. sydowii
DM1 proactively modulated cell membrane permeability, hyphae morphology, and septal quantities for seeking a better livelihood under mild pressure. Besides, differentially expressed genes were mainly enriched in the biosynthesis of amino acids, carbohydrate metabolism, cell process, etc., implying how the filamentous fungi respond to elevated pressure at the molecular level. We speculated that
A. sydowii
DM1 could acclimatize itself to HHP by adopting several strategies, including environmental response pathway HOG-MAPK, stress proteins, and cellular metabolisms.

IMPORTANCE

Fungi play an ecological and biological function in marine environments, while the physiology of filamentous fungi under high hydrostatic pressure (HHP) is an unknown territory due to current technologies. As filamentous fungi are found in various niches,
Aspergillus
sp. from deep-sea inspire us to the physiological trait of eukaryotes under HHP, which can be considered as a prospective research model. Here, the evaluation methods we constructed would be universal for most filamentous fungi to assess their pressure resistance, and we found that
Aspergillus sydowii
DM1 from the hadal area owned better piezotolerance and the active metabolisms under HHP indicated the existence of undiscovered metabolic strategies for hadal fungi. Since pressure-related research of marine fungi has been unexpectedly neglected, our study provided an enlightening strategy for them under HHP; we believed that understanding their adaptation and ecological function in original niches will be accelerated in the perceivable future.
Mathematical Model of Equilibrium Plasma Configurations in Magnetic Traps and Their Stability Analysis
Authors: Brushlinskii K. V. , Kryuchenkov V. V. , Stepin E. V. 
Published: December 2023

Abstract
The paper presents a review of numerical investigations of a special class of magnetic field-based plasma confinement traps in which current-carrying conductors are immersed in plasma. These traps are referred to as Galatea traps, as proposed by A. I. Morozov. The investigations are presented as applied to a cylinder with two conductors parallel to the axis, which is a straightened analog of a toroidal Galatea-belt trap. The mathematical model of equilibrium is based on a boundary value problem for the two-dimensional elliptic Grad–Shafranov equation, which is solved numerically. Of main interest are various approaches to the stability analysis of magnetoplasma configurations in a trap and the dependence of stability on the geometry and parameters of the problem. We analyze the linear-approximation stability of one-dimensional configurations surrounding a conductor and of two-dimensional configurations in a Galatea-belt trap. The main result of calculations in various problem statements is that the ratio of the characteristic gas and magnetic pressures under which stability occurs is bounded from above. We give a brief account of the main results published in recent years and present new results obtained recently.
Gender differences in weight gain during attempted and successful smoking cessation on dulaglutide treatment: a predefined secondary analysis of a randomised trial
Authors: Baur Fabienne , Atila Cihan , Lengsfeld Sophia , Burkard Thilo , Meienberg Andrea , Bathelt Cemile , Christ-Crain Mirjam , Winzeler Bettina 
Published: December 2023

BackgroundWomen seem to have more difficulty quitting smoking than men. This is particularly concerning as smoking puts women at a higher risk of developing smoking-associated diseases. Greater concerns about postcessation weight gain in women have been postulated as a possible explanation.MethodsPredefined secondary analysis of a placebo-controlled, double-blind, parallel-group, superiority randomised trial including 255 adults who smoke daily (155 women, 100 men). Participants received weekly dulaglutide (1.5 mg) or placebo (0.9% sodium chloride) in addition to standardised smoking cessation care (varenicline 2 mg/day plus behavioural counselling) over 12 weeks. We aimed to investigate gender differences in weight change after dulaglutide-assisted smoking cessation. Weight change between baseline and week 12 was analysed as absolute and revative weight change and as substantial weight gain (defined as >6% increase).ResultsNo gender differences were observed in absolute or relative weight change neither on dulaglutide nor placebo treatment. However, substantial weight gain (defined as >6% increase) in the placebo group was almost five times more frequent in females than males (24% vs 5%). Female patients were less likely to have substantial weight gain on dulaglutide compared with placebo (1% (n=1/83) vs 24% (n=17/72); p<0.001), while this dulaglutide effect was less pronounced in males (0% (n=0/44) vs 5% (n=3/56); p=0.333).ConclusionDulaglutide reduced postcessation weight gain in both genders and was very effective in preventing substantial weight gain, which seems to be a specific observation in females.Trial registration numberNCT03204396.
Impact of Mobile Stroke Units on Patients With Large Vessel Occlusion Acute Ischemic Stroke: A Prespecified BEST‐MSU Substudy
Authors: Czap Alexandra L. , Alexandrov Anne W. , Nour May , Yamal Jose‐Miguel , Wang Mengxi , Jacob Asha P. , Parker Stephanie A. , Tariq Muhammad Bilal , Rajan Suja S. , Alexandrov Andrei V. , Jones William J. , Navi Babak B. , Spokoyny Ilana , Mackey Jason , Lerario Mackenzie P. , Gonzalez Michael O. , Singh Noopur , Bowry Ritvij , Grotta James C. 
Published: December 2023

BackgroundThe impact of mobile stroke units (MSUs) on outcomes in patients with large vessel occlusions eligible for endovascular thrombectomy (EVT) has yet to be characterized.MethodsWe completed a prespecified substudy of patients with EVT‐eligible stroke with anterior and posterior circulation large vessel occlusions on computed tomography and/or computed tomography angiography who were enrolled in BEST‐MSU (Benefits of Stroke Treatment using a Mobile Stroke Unit). Primary outcome was 90‐day utility‐weighted modified Rankin scale. Groups were compared using chi‐square or Fisher's exact tests for categorical variables, and 2‐samplet‐tests for continuous variables. Multiple logistic regression was used to assess the effect of MSU on binary outcomes after adjusting for other baseline factors.ResultsOf 1515 trial patients, 293 had large vessel occlusions eligible for EVT: 168 in the MSU group and 125 in the emergency medical services group. Baseline characteristics were comparable, with the exception of baseline National Institutes of Health Stroke Scale score (MSU median 19 [interquartile range 13, 23] versus emergency medical services 16 [11, 20],P= 0.002) and study site. The mean (±SD) score on the utility‐weighted modified Rankin scale at 90 days was 0.63±0.39 in MSU group and 0.51±0.41 in emergency medical services group (mean difference 0.13, 95% CI [0.03–0.22]). After adjustment, MSU had significantly higher odds of functional independence (odds ratio 2.60 [95% CI, 1.45–4.77],P= 0.002). Secondary outcomes also favored MSU: early neurologic recovery (30% improvement in National Institutes of Health Stroke Scale score at 24 hours) 68% versus 52%; adjusted odds ratio 1.98 [95% CI, 1.19–3.33]; time of tissue plasminogen activator bolus from symptom onset 65.0 minutes [50.5–92.0] versus 96.0 [79.3–130.0],P≤0.001. The groups had similar onset to arterial puncture (169.0 minutes [133.5, 210.0] versus 162.0 [135.0–207.0],P= 0.83).ConclusionsIn patients with EVT‐eligible large vessel occlusion stroke, MSU management was associated with better clinical outcomes compared with standard emergency medical services management. MSU management sped thrombolysis but did not expedite EVT treatment times. Future MSU processes should include efforts to capitalize on the potential of MSUs to provide earlier EVT.
Bridging the Gap: A Survey on Integrating (Human) Feedback for Natural Language Generation
Authors: Fernandes Patrick , Madaan Aman , Liu Emmy , Farinhas António , Martins Pedro Henrique , Bertsch Amanda , de Souza José G. C. , Zhou Shuyan , Wu Tongshuang , Neubig Graham , Martins André F. T. 
Published: December 2023

Abstract
Natural language generation has witnessed significant advancements due to the training of large language models on vast internet-scale datasets. Despite these advancements, there exists a critical challenge: These models can inadvertently generate content that is toxic, inaccurate, and unhelpful, and existing automatic evaluation metrics often fall short of identifying these shortcomings. As models become more capable, human feedback is an invaluable signal for evaluating and improving models. This survey aims to provide an overview of recent research that has leveraged human feedback to improve natural language generation. First, we introduce a taxonomy distilled from existing research to categorize and organize the varied forms of feedback. Next, we discuss how feedback can be described by its format and objective, and cover the two approaches proposed to use feedback (either for training or decoding): directly using feedback or training feedback models. We also discuss existing datasets for human-feedback data collection, and concerns surrounding feedback collection. Finally, we provide an overview of the nascent field of AI feedback, which uses large language models to make judgments based on a set of principles and minimize the need for human intervention. We also release a website of this survey at feedback-gap-survey.info.
MissModal: Increasing Robustness to Missing Modality in Multimodal
Sentiment Analysis
Authors: Lin Ronghao , Hu Haifeng 
Published: December 2023

Abstract
When applying multimodal machine learning in downstream inference, both joint and coordinated multimodal representations rely on the complete presence of modalities as in training. However, modal-incomplete data, where certain modalities are missing, greatly reduces performance in Multimodal Sentiment Analysis (MSA) due to varying input forms and semantic information deficiencies. This limits the applicability of the predominant MSA methods in the real world, where the completeness of multimodal data is uncertain and variable. The generation-based methods attempt to generate the missing modality, yet they require complex hierarchical architecture with huge computational costs and struggle with the representation gaps across different modalities. Diversely, we propose a novel representation learning approach named MissModal, devoting to increasing robustness to missing modality in a classification approach. Specifically, we adopt constraints with geometric contrastive loss, distribution distance loss, and sentiment semantic loss to align the representations of modal-missing and modal-complete data, without impacting the sentiment inference for the complete modalities. Furthermore, we do not demand any changes in the multimodal fusion stage, highlighting the generality of our method in other multimodal learning systems. Extensive experiments demonstrate that the proposed method achieves superior performance with minimal computational costs in various missing modalities scenarios (flexibility), including severely missing modality (efficiency) on two public MSA datasets.