bluuebunny/crossref_metadata_2025_split huggingface dataset:
Joint Optimization of Condition‐Based Maintenance and Production Rate Using Reinforcement Learning Algorithms
Authors: Rasay Hasan , Azizi Fariba , Salmani Mehrnaz , Naderkhani Farnoosh 
Published: December 2024

ABSTRACTMaintenance has always been a crucial aspect of the manufacturing and industrial sectors. There is a recent surge of interest in utilizing advanced machine learning, and reinforcement learning models to enhance maintenance strategies. In this regard, this paper focuses on the development of a joint optimization model of maintenance and production for a special type of production system that has an adjustable production rate, where the system's deterioration is closely related to the production rate. When the production rate is increased, the expected deterioration of the system also increases. To control the deterioration of the system, the paper proposes two main actions or policies: maintenance policy and production policy. These policies involve scheduling and conducting maintenance actions on the system and adjusting the production rate, respectively. To solve the optimization problem of minimizing the expected costs of the system during a finite planning horizon, the paper develops a Markov decision process and employs reinforcement learning algorithms such as Q‐learning and SARSA. The hyperparameters of the algorithms are tuned using a value‐iteration algorithm of dynamic programming. The developed optimal actions given the state of the system ensure efficient management of the production system while controlling the deterioration of the system.
Fatigue Life Prediction and Reliability Assessment of CFRP Adhesively Bonded Joints in Offshore Wind Turbine Blade Applications: A Physics‐Informed Data‐Driven Approach
Authors: Shao Zhenjiang , Liu Zheng , Zhang Yuhao , Zhu Xiaoting 
Published: December 2024

ABSTRACTAdhesively bonded joints made of carbon fiber reinforced polymer (CFRP) are critical structures of offshore wind turbine blades, yet they are particularly susceptible to fatigue failure influenced by marine environmental factors. Current methodologies for predicting the fatigue life and assessing the reliability of these bonded joints face limitations due to insufficient data, modeling complexities, and inefficiencies. This study introduces a novel, physics‐informed, data‐driven approach to analyze the fatigue performance of CFRP adhesively bonded joints subjected to multi‐environmental stress, thereby improving fatigue life predictions and reliability assessments. Initially, an innovative method that integrates a physics‐informed data‐driven framework for predicting adhesive fatigue life and modeling reliability is proposed, utilizing the cyclic cohesive zone model (CCZM) alongside single‐hidden layer feedforward neural networks (SLFN). Multi‐environmental aging tests were conducted on CFRP‐bonded joints of varying dimensions, leading to the development of a physics‐informed fatigue analysis method based on CCZM. Furthermore, a reliability assessment and sensitivity analysis were performed to evaluate the impact of uncertainty factors. This research provides significant insights for the structural design and safety analysis of bonded structures in offshore wind turbine blades.
Proposal of SSVEP ratio for efficient ear-EEG SSVEP-BCI development and evaluation
Authors: Kondo Sodai , Harafuji Hideyuki , Tanaka Hisaya 
Published: December 2024

Abstract
Ear electroencephalogram (ear-EEG) records electrical signals around the ear, offering a more casual and user-friendly approach to EEG measurement. Steady-state visual evoked potential (SSVEP) are brain responses elicited by gazing at flickering stimuli. Ear-EEG can enhance comfort in SSVEP-based brain–computer interface (SSVEP-BCI), but its performance is typically low behind traditional SSVEP-BCI. Additionally, predicting the performance of ear-EEG SSVEP-BCIs before experimentation is challenging, often increasing design costs. This study proposes the SSVEP ratio as a supplementary index to traditional metrics such as information transfer rate (ITR) and BCI accuracy. Using the SSVEP ratio and the KNN algorithm, we predicted BCI accuracy and ITR, aiming to lower design costs. The developed four-inputs ear-EEG SSVEP-BCI achieved a maximum BCI accuracy of 89.17 ± 3.62% and an ITR of 10.60 ± 0.36 bits/min. Predicted BCI accuracy was 90.21 ± 3.25% and an ITR was 9.43 ± 0.96 bits/min in ear-EEG SSVEP-BCI. Predicted values matched the actual results, demonstrating that the SSVEP ratio can effectively predict BCI accuracy, thereby streamlining the design process for ear-EEG SSVEP-BCI.
Gene flow prevents genetic diversity loss despite small effective population size in fragmented grizzly bear (Ursus arctos) populations
Authors: Turnock Megan F. , Teisberg Justin E. , Kasworm Wayne F. , Falcy Matthew R. , Proctor Michael F. , Waits Lisette P. 
Published: December 2024

AbstractGenetic monitoring is important in small, fragmented populations that rely on gene flow to maintain genetic diversity. The Selkirk, Yaak, and Cabinet grizzly bear (Ursus arctos) populations are among the smallest in North America and are near the southernmost extent of the species’ range. These populations received little to no effective migration for generations but have recently experienced increased gene flow through natural migration and a population augmentation program. A long-term dataset of grizzly bear microsatellite genotypes from 1973 to 2021 presented a unique opportunity to examine genetic trends in these populations over time. We used this dataset of 464 bears to evaluate if gene flow affected observed heterozygosity (HO), expected heterozygosity (HE), allelic richness (AR), and average pairwise relatedness (r) in each of these populations. We also estimated effective population size (Ne) using the temporal and linkage disequilibrium (LD) methods. Post gene flow, AR increased in the Selkirk and Cabinet populations and r decreased in all three populations. We did not observe any significant changes in HE or HO, but HE values in our populations were significantly higher than those estimated using a model without gene flow. Our Ne estimates were consistent between the temporal and LD methods and ranged from 15.2 to 15.8, 15.4–17.5, and 5.6–8.9 for the Selkirk, Yaak, and Cabinet populations, respectively. Overall, our findings indicate that gene flow is increasing or maintaining genetic diversity in these populations. However, Ne remains low and additional connectivity or augmentation may be needed, particularly in the Cabinet population.
Lollipop and cubic weight functions for graph pebbling
Authors: Yang Marshall , Yerger Carl , Zhou Runtian 
Published: December 2024

Abstract
Given a configuration of pebbles on the vertices of a graph G, a pebbling move removes two pebbles from a vertex and puts one pebble on an adjacent vertex. The pebbling number of a graph G is the smallest number of pebbles required such that, given an arbitrary initial configuration of pebbles, one pebble can be moved to any vertex of G through some sequence of pebbling moves. Through constructing a non-tree weight function for

$$Q_4$$

Q
4

, we improve the weight function technique, introduced by Hurlbert and extended by Cranston et al., that gives an upper bound for the pebbling number of graphs. Then, we propose a conjecture on weight functions for the n-dimensional cube. We also construct a set of valid weight functions for variations of lollipop graphs, extending previously known constructions.
End behavior of Ramanujan’s Taxicab numbers
Authors: Benfield Brennan , Lippard Oliver , Roy Arindam 
Published: December 2024

Abstract
Generalized taxicab numbers are the smallest positive integers that are the sum of exactly j, positive

$$k^{\textrm{th}}$$

k
th

powers in exactly m distinct ways. This paper considers for which values of m does the smallest such positive integer exist as j gets large. There appear to be only two possible outcomes, leading to curious results, for instance, there is no positive integer that can be expressed as the sum of exactly 10 perfect squares in exactly 3 ways. This paper resolves a number of conjectures found in the OEIS by considering generalized Taxicab numbers in the setting of the theory of partitions.
The unit fractions from a Euclidean domain generate a DVR
Authors: Epstein Neil 
Published: December 2024

AbstractLet D be a Euclidean domain, with fraction field K. Let R(D) be the subring of K generated by the reciprocals of the nonzero elements of D. The main theorem states that if $$R(D) \ne K$$

R
(
D
)
≠
K

, then R(D) is a rank 1 discrete valuation ring that contains a field consisting of the units of D along with 0. Along the way, it is shown that R(D) contains all fractions of the form a/b, where $$a,b \in D \setminus \{0\}$$

a
,
b
∈
D
\
{
0
}

and a has Euclidean value no larger than that of b. Connections are also made to ideas from medieval Italian mathematics.
Perceptions of Chinese medicine information sharing in electronic health record sharing system (eHRSS) for patients: a mixed-method study
Authors: Huang Junjie , Chan Sze Chai , Wong Yuet Yan , Mak Fung Yu , Lam Corey , Chung Kam Fung , Lui Luva , Cheung Clement S. K. , Wong Wing Nam , Cheung Ngai Tseung , Wong Martin C. S. 
Published: December 2024

Abstract

Purpose
The Stage Two Development of eHRSS intends to expand the breadth of shareable data and increase technical capabilities for sharing Chinese Medicine (CM) information. This study aims to investigate patients' perceptions, perceived benefits and difficulties toward the adoption of EC Connect and eHRSS.

Methods
All patients who are eHRSS users or non-eHRSS users were recruited. Several logistic regression models were conducted with descriptive analysis including age, gender, socioeconomic status, and past medical history. In-depth interviews were conducted among Healthcare Recipients (HCRs) of eHRSS whose information about Chinese Medicine is shared to eHRSS.

Results
A total of 884 respondents were analysable in this study. Older age (50–64, compared to 18–29, aOR = 3.02, 95% CI = 1.48–6.17, p = 0.002), participation in eHRSS (aOR = 1.95, 95% CI = 1.17–3.27, p = 0.011) and usage of eHealth app (aOR = 1.87, 95% CI = 1.19–2.95, p = 0.007) were associated with a higher level of acceptability on the expansion of eHRSS sharing scope to CM. In study 2, users agreed that CM information sharing to eHRSS improved patient management while knowledge of CM information exchange was insufficient. The respondents were supportive towards the expansion of sharing scope which could enhance the intention in joining eHRSS.

Conclusions
We found that patients' western medical records should be reviewed to deliver better patient care. For future development of eHRSS in CM, it was important to increase propaganda among the general population and to improve consistency between Western and Chinese medical systems.
Full disc [C II] mapping of nearby star-forming galaxies
Authors: Kovačić I. , Barnes A. T. , Bigiel F. , De Looze I. , Madden S. C. , Herrera-Camus R. , Krabbe A. , Baes M. , Beck A. , Bolatto A. D. , Bryant A. , Colditz S. , Fischer C. , Geis N. , Iserlohe C. , Klein R. , Leroy A. , Looney L. W. , Poglitsch A. , Sartorio N. S. , Vacca W. D. , van der Giessen S. , Nersesian A. 
Published: December 2024

Context. As a major cooling line of interstellar gas, the far-infrared 158 μm line from singly ionised carbon [C II] is an important tracer of various components of the interstellar medium in galaxies across all spatial and morphological scales. Yet, there is still not a strong constraint on the origins of [C II] emission.
Aims. In this work, we derive the resolved [C II] star formation rate relation and aim to unravel the complexity of the origin of [C II].
Methods. We used the Field-Imaging Far-Infrared Line Spectrometer on board the Stratospheric Observatory for Infrared Astronomy to map [C II] in three nearby star-forming galaxies at sub-kiloparsec scales, namely, NGC 3627, NGC 4321, and NGC 6946, and we compared these [C II] observations to the galactic properties derived from complementary data from the literature.
Results. We find that the relationship between the [C II] fine structure line and star formation rate shows variations between the galaxies as well as between different environments within each galaxy.
Conclusions. Our results show that the use of [C II] as a tracer for star formation is much more tangled than has previously been suggested within the extragalactic literature, which typically focuses on small regions of galaxies and/or uses large-aperture sampling of many different physical environments. As found within resolved observations of the Milky Way, the picture obtained from [C II] observations is complicated by its local interstellar medium conditions. Future studies will require a larger sample and additional observational tracers, obtained on spatial scales within galaxies, in order to accurately disentangle the origin of [C II] and calibrate its use as a star formation tracer.
Activation of the Contact System and Intrinsic Pathway in Peripheral and Portal Venous Circulations in Liver Cirrhosis
Authors: Campello Elena , Zanetto Alberto , Prokopenko Yuriy , Ilich Anton , Moonla Chatphatai , Bulato Cristiana , Toffanin Serena , Shalaby Sarah , Cardin Romilda , Barbiero Giulio , Gavasso Sabrina , Key Nigel S. , Senzolo Marco , Simioni Paolo 
Published: December 2024

Background Portal vein system-specific risk factors contributing to portal vein thrombosis in cirrhosis are poorly investigated.
Aim This study aimed to quantify contact system and intrinsic pathway activation in the peripheral compared to portal venous blood in patients with decompensated cirrhosis.
Methods Adult patients with cirrhosis undergoing transjugular intrahepatic portosystemic shunt underwent simultaneous blood sampling from a peripheral vein and the portal vein. Complexes of serine proteases with their respective inhibitors were measured by ELISA to quantify contact system (PKa:C1-INH [plasma kallikrein:C1-esterase inhibitor] and FXIIa:C1-INH) and intrinsic pathway activation (FXIa:C1-INH, FXIa:α1at [α-1 antitrypsin], FXIa:AT [antithrombin], and FIXa:AT).
Results Twenty patients with cirrhosis (mean age 55 ± 7 years, M = 58%, Child–Pugh A/B/C 6/11/3) and 25 healthy controls (mean age 45 ± 12 years, M = 60%) were enrolled. The etiology of cirrhosis was primarily alcohol abuse, followed by chronic viral infection. Log-transformed peripheral levels of all the complexes were significantly higher in patients compared with controls. While levels of PKa:C1-INH, FXIIa:C1-INH, FXIa:C1-INH and FXIa:α1at were similar in peripheral and portal venous blood in cirrhotic patients, FXIa:AT and FIXa:AT levels were significantly higher in portal blood (p = 0.013 and 0.011, respectively). FXIa:C1-INH significantly correlated with both contact system complexes (FXIIa:C1-INH and PKa:C1-INH) and with FIX:AT.
Conclusion Markers of contact system and intrinsic pathway activation in the systemic circulation were significantly higher in cirrhosis versus controls. Complexes of FXIa and FIXa with AT were significantly higher in the portal than in peripheral plasma in cirrhosis, possibly indicating a unique heparin-like effect in portal venous blood.
Association of Community Characteristics as Measured by Social Deprivation Index Score with Prenatal Care and Obstetrical Outcomes
Authors: Sassin Alexa M. , Osterlund Natalie , Sangi-Haghpeykar Haleh , Aagaard Kjersti 
Published: December 2024

Objective We aimed to determine the relationships between socioeconomic disadvantage, as measured by the Social Deprivation Index (SDI), and prenatal care (PNC) utilization, obstetrical outcomes, and neonatal complications.
Study Design All spontaneously conceived singleton deliveries of nulliparous gravida with residence zip code available (n = 4,786) were identified in a population-based database. Deliveries were assigned SDI scores based on preconception zip code. SDI scores (1–100) are a composite measure of seven community demographic characteristics of poverty, education, transportation, employment, and household composition. SDI scores were categorized into quartiles and grouped for analysis (Q1 [n = 1,342], Q2 + 3 [n = 1,752], and Q4 [n = 1,692]) with higher scores indicative of greater disadvantage. Statistical analysis was performed using a generalized linear mixed method.
Results Among our cohort, gravida in the lowest (least-deprived) SDI quartile (Q1) were older, had lower prepregnancy body mass indices, and were more likely to receive PNC from a physician specializing in Obstetrics and Gynecology. Gravida residing in the highest (most-deprived) SDI quartile (Q4) attended fewer prenatal visits (mean [standard deviation] 11.17 [2.9]) than those living in Q1 (12.04 [2.3], p < 0.0001). Gravida in Q4 were less likely to receive sufficient PNC compared with those in Q1 (52 vs. 64.2%, p < 0.0001) and were more likely to fail to achieve appropriate gestational weight gain (GWG) (19.6 in Q4 vs. 15.9% in Q1, p < 0.01). No significant differences in composite maternal (CMM) or neonatal morbidity (CNM) were associated with SDI quartile.
Conclusion Outer quartile social deprivation was associated with higher proportions of primigravida not meeting recommendations for GWG and attending fewer prenatal visits, but it did not affect CMM or CNM. Improving care access and providing nutritional support to all gravida are likely important steps toward health equity.
Key Points
The Impact of Extended Procedure Duration on Nasal Morbidity after Endoscopic Endonasal Transsphenoidal Resection of Pituitary Macroadenomas
Authors: Carey Preston , Kelly Patrick D. , Vinjamuri Shreya , Smit Rupert , Doshi Riyana , Shah Riya , Murayi Roger , Farquhar Douglas , Rabinowitz Mindy R. , Nyquist Gurston G. , Rosen Marc R. , Bray David , Evans James J. 
Published: December 2024

Abstract
Objective Nasal mucosa is susceptible to injury during endoscopic endonasal transsphenoidal resection of pituitary macroadenomas. Prolonged operative times may lead to increased instrumentation-induced injury to nasal mucosa. Influence of operative time on sinonasal morbidity has not been reported previously. Our objective is to determine preoperative drivers extending operative time and the impact of prolonged endoscopic endonasal transsphenoidal resection on nasal morbidity as measured by postoperative SNOT-22 questionnaire.
Study Design SNOT-22 scores were collected at each rhinology visit and intraoperative OR start and stop timestamps as recorded by nursing staff were extracted from the record.
Setting Cases of endoscopic endonasal transsphenoidal pituitary adenoma resection at a tertiary care center were identified.
Methods Multivariable regression was done analyzing factors influencing SNOT-22 scores and surgical time.
Results The study included 222 patients. Median preoperative SNOT-22 score was 12.5 (IQR 4.00, 24.25) and median postoperative SNOT-22 score was 9 (IQR 2.00, 19.25), indicating overall improvement at 6 months. Median procedure duration was 200.4 minutes (IQR 164, 249). Multivariable regression of SNOT-22 showed only history of sinus surgery caused increased sinonasal morbidity (p = 0.05). Factors including tumor size (p = 0.01), surgical approach (p = 0.01), and reconstruction technique (p = 0.01) most significantly increased operative time.
Conclusion Only a history of prior sinus surgery was associated with increased nasal morbidity. Tumor size, functional tumors, surgical approach, reconstructive technique, and subtotal resection all prolonged operative time. Surgeons should consider counseling patients meeting these criteria on potential risk of increased morbidity and increased operative time with endoscopic endonasal transsphenoidal resection.
Malignant Pilomatricoma with Lung Metastases: A Case Report and Literature Review
Authors: Lee Nae-Ho , Park Jung Kyun , Roh Si-Gyun , Shin Jin Yong , Chung Yoon Kyu , Jang Kyu Yun 
Published: December 2024

AbstractMalignant pilomatricoma, an extremely rare tumor arising from hair follicles, most commonly occurs on the head, neck, and back. This tumor exhibits several noteworthy characteristics. First, it frequently recurs if it is incompletely excised and can occasionally metastasize to the lungs, bones, and lymph nodes. Additionally, it possesses unique histological features that aid in differentiating it from its benign counterpart, including atypical cells, multiple mitoses with ghost cells, nuclear polymorphisms, and necrosis accompanied by serial desmoplasia. While no definitive criteria have been established for the surgical management of this malignant tumor, it is recommended to perform wide local excision with a safety margin of at least ≥5 mm. To the best of our knowledge, very few cases of malignant pilomatricoma with lung metastasis have been reported in Korea. Here we report the case of a patient diagnosed of malignant pilomatricoma with lung metastasis who underwent wide local excision for a lesion on the flank.
Minimally Invasive Mitral Valve Repair with Intercostal Cryoablation: A Case Report
Authors: Humpfle Luisa , Böning Andreas , Niemann Bernd 
Published: December 2024

Abstract
Background Minimally invasive lateral thoracotomies may cause severe postoperative pain and discomfort. We describe an intraoperative intercostal cryo-neuronal pain block as one possibility for postoperative pain relief.
Case description A 63-year-old male patient underwent minimally invasive mitral valve repair. To reduce postoperative pain, an intercostal cryo-neuronal ablation was performed. The consecutive course was pain-free.
Conclusion Intraoperative cryo-neuronal nerve block may be a standard procedure during minimally invasive cardiac surgery.
Time Will Tell: A Temporal Analysis of Victim-Survivor’s Formal Support-Seeking for Co-occurring Family Violence and Sexual Harm
Authors: Ridgway Alexandra , Hamilton Gemma , Powell Anastasia , Heydon Georgina 
Published: December 2024

Abstract
Drawing on qualitative interviews with both victim-survivors (n = 11) and specialist service providers (n = 11) in Victoria (Australia), this article analyses formal support-seeking for co-occurring family violence and sexual harm through a temporal lens. Our findings focus on two main themes: (i) victim-survivor readiness and trauma-informed support; and (ii) service readiness, time constraints and delays in providing support. The analysis sheds light on the disconnection between crisis intervention for family violence and long-term therapeutic support for sexual harm. In response, we emphasize the unique contribution of a trauma-informed temporal lens to criminological knowledge and discuss implications for policy and practice.
The Laws of Nature: Rewriting the Myth of Demeter and Persephone in Peter Greenaway’s The Draughtsman’s Contract
Authors: Elliott Tomas 
Published: December 2024

Abstract
This article considers the rewriting of the myth of Demeter and Persephone contained in Peter Greenaway’s 1982 film, The Draughtsman’s Contract. Via a reconsideration of the various versions of the myth present in both the film and its classical sources, the article argues that the film uses the myth to offer a nuanced meditation on the situation of women in both the seventeenth century (when the film is set) and the late twentieth century (when the film was made). Reflecting back across the centuries, the film highlights how interpretations of the myth of Demeter and Persephone have tended to be defined by particular social, legal, and technological formations, rather than by any kind of natural order (for which the myth itself provides a speculative aetiology). In Greenaway’s film, within the limits of their social and material situations, the female characters rewrite the terms of the myth to achieve a qualified autonomy within a deeply patriarchal society.