bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Deep Learning Method for Non-Uniform Flow Field Based on KAN and MLP Neural Networks
Authors: YuanGao  , XinWang  
Published: January 2025

Abstract

Fluid-solid interaction(FSI) has always been a hot topic in the field of fluid mechanics. Because the flow field of FSI is highly inhomogeneous, when the initial conditions change with time, the inhomogeneity of the flow field in time and space will be further aggravated. The forward and inverse solutions of physical information neural networks (PINNs) in fluid mechanics have been widely studied and significant progress has been made. The technology of learning and reconstructing the flow field with PINNs is relatively mature. However, there are still large errors in predicting the flow field with uneven temporal and spatial distribution. Neural networks(NN) cannot capture some local details in learning. In addition, the generalization characteristics of NNs will also weaken the learning of local highlight areas. Therefore, inspired by the confidence weight, this paper proposes a local reinforcement learning (LRL) method to solve the above problems. It is found that LRL has a good effect on local learning. Based on the LRL method, the applicability of three different NN frameworks in the reconstruction of FSI flow fields is tested, namely, multilayer perceptron(MLP), KAN and KAN + MLP. For the MLP framework, the details of the inhomogeneous flow field can be learned more accurately. For the KAN framework, by setting different depths and widths for NN, it is found that the prediction accuracy of KAN does not depend on the scale of NN, but has specific settings for specific problems. However, when applying the LRL method, the prediction effect of KAN is not particularly ideal, so the KAN + MLP framework is proposed as an improved method. The prediction effect is relatively ideal, but it takes a lot of time to train. In this study, the performance of the new framework KAN in inhomogeneous flow field is tested, which provides ideas and basis for further research on its application scope and practical effect in fluid mechanics.
Impact of Extrusion, ECAP, and Annealing on the Microstructure, Mechanical Properties, and Biocorrosion Behavior of the ZX10 Magnesium Alloy
Authors: Raguraman Sreenivas , Kim Andrew , Ayodeji Tunde , Griebel Adam J. , Bershadsky Diana , Nguyen Tram , Weihs Timothy P. 
Published: January 2025

Abstract

Magnesium alloys are increasingly recognized as promising materials for biomedical implants due to their low density, biocompatibility, and favorable mechanical properties. However, achieving a balance between mechanical strength and bio-corrosion resistance remains a critical challenge. This study evaluates the effects of three thermomechanical processing techniques — extrusion (EXT), Equal Channel Angular Pressing (ECAP), and ECAP followed by low-temperature annealing at 150°C for 10 hours (ECAP-A) — on the microstructure, mechanical properties, and bio-corrosion behavior of the ZX10 magnesium alloy. EXT resulted in a coarse, elongated grain structure, increased volume fraction of Mg2Ca particles, and moderate mechanical and corrosion performance. ECAP lowered the volume fraction of Mg2Ca particles and significantly refined the grain structure, and increased dislocation density, improving hardness by 80%, yield strength, and ductility. However, the corrosion rate doubled due to the high dislocation density. Post-ECAP annealing (ECAP-A) mitigated this limitation, reducing the corrosion rate to 1.50 mm/year while maintaining a high yield strength (>200 MPa). This improvement was driven by a uniform distribution of the Ca2Mg6Zn3 phase, a further reduction of the Mg2Ca phase, and decreased dislocation density. These findings demonstrate that ECAP, followed by annealing, optimally balances mechanical performance and bio-corrosion resistance, making the ZX10 magnesium alloy a promising candidate for biodegradable implant applications
Decadal Georeservoir Property Evolution Under Waterflooding: A Hierarchical Statistical and Laboratory-Based Comparative Analysis
Authors: Fang Zihe , Du Chenguang , Gao Wenyu , Li Zihao , Li Xiangming 
Published: January 2025

Abstract

The variability in georeservoir properties induced by waterflooding introduces complex predictability challenges, influenced by natural and engineered phenomena. Despite the global prevalence of mature sandstone reservoirs subjected to long-term waterflooding, the effects of waterflooding, especially after extended periods of application, are not well understood. To address this, a comprehensive series of laboratory-based experiments and hierarchical statistical analyses were conducted on a large set of core samples. Some of them experienced over a decade of waterflooding before they were drilled out. This unique real-world dataset ensures high reliability and statistical significance. The laboratory experiments revealed the georeservoir was impacted significantly due to preferential channels development, pore structure modification, and mineralogical changes associated with waterflooding. Specifically, waterflooding was able to influence reservoir wettability, transitioning rock surfaces towards greater hydrophilic, leading to the relative permeability changing. Cast thin sections illustrated that prolonged water flooding significantly dissolved the edges of clastic particles susceptible to water erosion, further elucidating changes in porosity and permeability. Permeability sensitivity tests on current phase samples indicated a general sensitivity ranging from weak to medium-weak. The pore network structure was further analyzed using mercury intrusion porosimetry (MIP), confirming the influence of preferential channels by enhancing the overall porosity-permeability characteristics. Considering the fact that the overall recovery did not increase although the improvement of porosity-permeability, the primary reason behind this phenomenon can be confirmed as the emergence of preferential channels. Moreover, hierarchical statistical models fitted by MIP data quantitatively evaluate the evolution of the georeservoir from the initial to current phase. The validity of the models are also confirmed through statistical approaches. This comprehensive set of laboratory-based and statistical studies provides valuable insights into the impact of waterflooding on sandstone reservoir properties and illuminates the developmental strategy of these reservoirs post-waterflooding.
Treatment outcomes in young adults with gastric cancer
Authors: Pugaev D. M. , Ryabov A. B. , Khomyakov V. M. , Kolobaev I. V. , Kostrygin A. K. , Aleksandrov O. A. , Pogosуan G. S. , Sobolev D. D. , Chayka A. V. , Utkina A. B. , Lyubchenko L. N. , Kaprin A. D. 
Published: January 2025

Introduction. According to global data, gastric cancer (GC) is the 5-th most common malignancy with a high cancer-related mortality rate. However, in recent decades, there has been a tendency towards an increase in the incidence of GC among young patients (18 to 40 years old), which currently amounts to 4.4–9.8%. Aim: to evaluate the effectiveness of surgical, combined and palliative treatment options in early-onset GC. Material and Methods. the study included 129 patients aged 18–45 years, who underwent radical, cytoreductive and palliative surgery with or without combination with drug therapy for localized, locally-advanced and primary disseminated GC. the patients were divided into three clinical groups: 1) the surgical group (n=27) included patients with only surgical treatment; 2) the group of combined treatment (n= 58) included patients with PCI <7 who underwent surgery with the volume of CC0 in combination with CT (neoadjuvant, adjuvant, perioperative, simultaneously with or without hyperthermic intraoperative intraperitoneal chemotherapy (HIPEC) and patients who underwent only HIPEC; 3) the additional (palliative) group (n=44) included patients with PCI>7 who underwent systemic CT in combination with pressurized intraperitoneal aerosol chemotherapy (PIPAC). Results. the median overall survival (OS) in three groups was 58, 30 and 13 months, respectively. In patients with IV stage of disease who underwent HIPEC with CC0 surgery, OS in the 2nd group was 17 in comparison with 13 months in the third group (PIPEC). Conclusion. Aggressive multimodal treatment in the absence of comorbid status in young patients will allow for intensification of both the perioperative drug therapy component and the implementation of extended multivisceral resections that facilitate radical surgical treatment to improve both DFS and OS.
The Value of Using Quantitative MRI based on Synthetic Acquisition and Apparent Diffusion Coefficient to Monitor Multiple Sclerosis Lesion Activity
Authors: Abujamea Abdullah H. , Albadr Fahad B. , Asiri Arwa M. 
Published: January 2025

Background:
Multiple sclerosis (MS) is one of the most common disabling central nervous system diseases affecting young adults. Magnetic resonance imaging
(MRI) is an essential tool for diagnosing and following up multiple sclerosis. Over the years, many MRI techniques have been developed to
improve the sensitivity of MS disease detection. In recent years synthetic MRI (sMRI) and quantitative MRI (qMRI) have gained traction in
neuroimaging applications, providing more detailed information than traditional acquisition methods. These techniques enable the detection of
microstructural changes in the brain with high sensitivity and robustness to inter-scanner and inter-observer variability. This study aims to evaluate
the feasibility of using these techniques to avoid administering intravenous gadolinium-based contrast agents (GBCAs) for assessing MS disease
activity and monitoring.

Materials and Methods:
Forty-two known MS patients, aged 20 to 45, were scanned as part of their routine follow-up. MAGnetic resonance image Compilation (MAGiC)
sequence, an implementation of synthetic MRI, was added to our institute's routine MS protocol to automatically generate quantitative maps of T1,
T2, and PD. T1, T2, PD, and apparent diffusion coefficient (ADC) data were collected from regions of interest (ROIs) representing normalappearing
white matter (NAWM), enhancing, and non-enhancing MS lesions. The extracted information was compared, and statistically analyzed,
and the sensitivity and specificity were calculated.

Results:
The mean R1 (the reciprocal of T1) value of the non-enhancing MS lesions was 0.694 s-1 (T1=1440 ms), for enhancing lesions 1.015 s-1
(T1=985ms), and for NAWM 1.514 s-1 (T1=660ms). For R2 (the reciprocal of T2) values, the mean value was 6.816 s-1 (T2=146ms) for nonenhancing
lesions, 8.944 s−1 (T2=112 ms) for enhancing lesions, and 1.916 s−1 (T2=522 ms) for NAWM. PD values averaged 93.069% for nonenhancing
lesions, 82.260% for enhancing lesions, and 67.191% for NAWM. For ADC, the mean value for non-enhancing lesions was
1216.60×10−6 mm2/s, for enhancing lesions 1016.66×10−6 mm2/s, and for NAWM 770.51×10−6 mm2/s.

Discussion:
Our results indicate that enhancing and non-enhancing MS lesions significantly decrease R1 and R2 values. Non-enhancing lesions have
significantly lower R1 and R2 values compared to enhancing lesions.

Conclusion:
Conversely, PD values are significantly higher in non-enhancing lesions than in enhancing lesions. For ADC, while NAWM has lower values,
there was minimal difference between the mean ADC values of enhancing and non-enhancing lesions.
El clero bogotano y las autoridades estatales en la transición del Virreinato de la Nueva Granada a la República de Colombia (1817-1827)
Authors: Ferrari Francesco , Nossa-Ramos Diana Constanza 
Published: January 2025

El presente artículo reconstruye la relación entre el clero santafereño y las autoridades estatales entre 1817 y 1827, década en que el arzobispado fue sede vacante. La investigación se enfoca en la relación pública entre los sacerdotes y las autoridades civiles porque está basada en los textos que el clero imprimió en Bogotá para ser difundidos entre los lectores. El artículo se divide en dos partes: en la primera se analiza la relación entre clero bogotano y las autoridades estatales desde la muerte de Juan Bautista Sacristán hasta la fundación de la república. En la segunda, el vínculo de los curas bogotanos con los poderes civiles a partir de la Constitución de Cúcuta y hasta 1827. La investigación es inédita y se inserta en el ámbito de la historia eclesiástica y contemporánea colombiana, con el fin de profundizar en el conocimiento del papel del clero en el desarrollo social y político de la ciudad y del país.
Problem-based learning in improving critical mathematical thinking skills: Independent curriculum teaching module
Authors: Juniati Helmira , Jamaan Elita Zusti 
Published: January 2025

Background: Students' limited abilities in critical mathematical thinking present a persistent obstacle in mathematics education. To address this issue, this study focuses on developing a teaching module aligned with the Independent Curriculum, incorporating the Problem-Based Learning (PBL) approach.Aim: This research aims to design and validate a teaching module tailored to enhance students' critical thinking skills in solving mathematical problems.Method: Employing the Plomp development model, the study was conducted through three phases: preliminary analysis, development or prototyping, and evaluation. Data collection involved expert validation, with analysis performed using a validity index.Result: The independent curriculum teaching module received an average validity score of 3.57, categorized as highly valid, confirming its feasibility and alignment with instructional criteria.Conclusion: The findings demonstrate that the developed module fulfills all validity criteria, making it suitable for use in mathematics education to support the development of critical thinking skills. Further studies are encouraged to investigate its influence on students' learning outcomes.
Cats with inflammatory gastrointestinal or dermatological disorders exhibit increased care-soliciting and anxious behaviors
Authors: Gilbert Eilidh J. , Powell Lauren , Siracusa Carlo 
Published: January 2025

Abstract

OBJECTIVE
This study investigated whether the behavior profiles of cats with inflammatory gastrointestinal or skin diseases differ from those of healthy cats.

METHODS
We identified adult cats within the patient database at the University of Pennsylvania’s veterinary hospital that had been diagnosed with inflammatory gastrointestinal (n = 22) or skin disorders (17) and a control group of healthy cats (58). We collected data via owner completion of the Feline Behavioral Assessment & Research Questionnaire from March to May 2023 and conducted an observational study comparing the Feline Behavioral Assessment & Research Questionnaire scores between groups.

RESULTS
Cats with inflammatory gastrointestinal or skin disease exhibited more etepimeletic (care-soliciting) behaviors than healthy cats, including purring (U = 1,396.50, Z = 2.03, r = 0.21, 95% CI, 0.00 to 0.50), trainability (U = 1,303.50, Z = 2.33, r = 0.24, 95% CI, 0.00 to 1.00), and sociability to people (U = 367.50, Z = 2.21, r = 0.26, 95% CI, 0.00 to 1.57). The inflammatory group also exhibited more anxious behaviors than the healthy group, including compulsive grooming (U = 1,736.00, Z = 4.91, r = 0.50, 95% CI, 0.33 to 1.00) and fear of novelty (U = 603.00, Z = 2.14, r = 0.25, 95% CI, 0.00 to 1.00). Additionally, cats treated with corticosteroids exhibited more anxious behaviors than healthy and nonsteroid treatment groups, including separation behaviors (χ2[2] = 8.22, η2 = 0.08) and compulsive grooming (χ2[2] = 25.35, η2 = 0.25).

CONCLUSIONS
Chronic inflammatory response is associated with increased etepimeletic and anxious behaviors in cats, and corticosteroid treatment is associated with anxious behaviors.

CLINICAL RELEVANCE
These findings suggest that monitoring anxious and etepimeletic behaviors may be relevant when assessing inflammatory disease in cats.
Pengaruh Revisi Anggaran, Partisipasi Anggaran dan Tingkat Kesulitan Terhadap Pencapaian Anggaran yang Efektif pada Hotel Berbintang di Kota Denpasar.
Authors: Aprianti Jw Km Sri , Putri I Gusti Ayu Made Asri Dwija 
Published: January 2025

This study aims to obtain empirical evidence of the effect of budget revisions, budget participation, and the level of difficulty of budget targets on budget effectiveness at star hotels in Denpasar City. In this study the dependent variable is Budget Effectiveness, while the independent variables in this study are Budget Revision, Budget Participation and Difficulty Level of Budget Targets. The method used is incidental sampling, namely conducting a survey by distributing questionnaires to respondents using (google form). The method of determining the sample uses the incidental sampling approach. The data analysis technique uses multiple linear regression. The results show that the Budget Revision has a positive and insignificant effect on Budget Effectiveness, Budget Participation has a positive and significant effect on Budget Effectiveness, and the Difficulty Level of Budget Targets has a positive and significant effect on Budget Effectiveness.
PENGELOLAAN KEBISINGAN DI JALAN RAYA CANGGU, DESA CANGGU, KECAMATAN KUTA UTARA, KABUPATEN BADUNG, PROVINSI BALI
Authors: Cahyaninghati Ni Made Ruth , Paturusi Syamsul Alam , Antara Made 
Published: January 2025

Noise is a disturbing sound that occurs and causes an uncomfortable feeling for the listener. The density of tourism in Canggu creates an uncomfortable feeling for the local community, due to the noise generated by tourism activities and other activities. Therefore, the purpose of this research is determine the level of noise that occurs on Jalan Raya Canggu as well as determine the community's response to disturbance and provide strategies for dealing with noise. This research was carried out by collecting information regarding noise levels through observations and questionnaires on Jalan Raya Canggu. The total number of respondents taken was 30 respondents. Noise levels are calculated using a formula based on Minister of Environment Decree Number 48 of 1996 using a sound level meter. Community disturbance scores are processed using a Likert scale. The research results show that based on 5 research points the highest noise peak is at 09.00 and the lowest noise is at 01.00. The response to community disturbance with the highest index value was community disturbance due to traffic density, namely 89.3%. SWOT analysis is used to obtain noise management strategies on Jalan Raya Canggu. Jalan Raya Canggu is located in quadrant IV (Defensive Strategy) with a strategy of maintaining the existing strength of Jalan Raya Canggu as a tourism route by improving traffic so that in the long term tourism development will increase and have a good effect on the community and reduce noise.
Keywords: noise; community disturbance; traffic; management
Pro-Environmental Behaviors and Their Limitations in A Sample of Chilean Adults
Authors: Moraga-Villablanca Felipe Andres , Valedebenito Maria Andrea Borzone , Maluenda-Albornoz Jorge Ignacio , Fuica-Almonte Pablo Ignacio , Zamorano-Veragua Matias Cristian 
Published: January 2025

Objective: To analyze pro-environmental behaviors (PEB), their level of awareness, and the limitations that reduce their frequency. Secondary objectives included evaluating the psychometric properties of the instrument used and examining gender differences across the dimensions analyzed.

Theoretical Framework: Climate change is the main challenge of our time. To mitigate its negative impact, it is essential to promote PEB, defined as actions that effectively contribute to environmental protection. These behaviors can be grouped into five dimensions: recycling, sustainable mobility, energy and water conservation at home, environmentally responsible purchasing, and social and political participation for environmental purposes.

Method: A mixed-method descriptive design was employed with non-probabilistic sampling. The “Characterization of Pro-Environmental Behaviors Survey (ECCP)” and open-ended questions about limitations were administered to 284 participants. Analyses included factorial analysis, descriptive statistics, group comparisons, and emergent coding of qualitative data.

Results and Conclusions: The ECCP demonstrated adequate psychometric properties. Participants reported being aware of the relationship between PEB and environmental protection. The most frequent dimensions were energy and water conservation, recycling, and sustainable mobility, while environmentally responsible purchasing and social/political participation were less common. The main limitations identified were lack of time, insufficient infrastructure, comfort, and habit, with differences observed across specific dimensions.

Originality/Value: The findings provide insights into the prevalence of pro-environmental behaviors and their limitations, offering valuable information for the targeted development of strategies to promote these behaviors effectively.
Diffusion weighted imaging as adjunct modality to distinguish benign and malignant breast lesions in resource constrained settings: A single institute experience
Authors: Kaginalkar Varsha , Arora Nikhil , Shukla Ashish 
Published: January 2025

Objectives
To establish the accuracy of the “targeted DWI/ADC sequence” as an adjunct to mammography and sonography for differentiating malignant and benign breast masses in an underdeveloped population, in correlation with histopathology.

Materials and Methods
The study population was predominantly rural and from underdeveloped regions. It included 108 female patients of various ages who presented with breast masses with equivocal diagnoses on mammography and sonography. These patients were unwilling to return for additional investigations. The targeted lesions were then further evaluated using diffusion weighted imaging (DWI)/apparent diffusion coefficient (ADC) maps and ADC values. The final diagnosis was later confirmed by histopathology examination.

Results
A total of 108 patients having 115 lesions were targeted based on mammography and sonography findings and subjected to DWI. The cut-off ADC value was established for these lesions to be 1.2 × 10–3 mm2/s through receiver operating characteristic curve analysis. This value exhibited a sensitivity of 98.7% and specificity of 91.9% in the present study. DWI overdiagnosed malignancy by 2.6%.

Conclusion
In the present study, the “targeted DWI/ADC sequence” has proven useful with a sensitivity of 98.7% and specificity of 91.9% using a cut-off value of 1.2 × 10–3 mm2/s. Targeted DWI/ADC in combination with mammography and sonography accurately identified all malignant lesions with overdiagnosis of malignancy in 2.6% of cases. In India, where the demographic is largely rural and underdeveloped, social and economic limitations, along with a lack of awareness, make adherence to ideal diagnostic protocols challenging. This ultimately results in losing the patient to follow-up and missing the cancer. This novel approach of targeted DWI/ADC sequence in combination with mammography and sonography is highly effective in such scenarios, enabling the identification of the likely nature of the disease during the same visit. This empowered healthcare professionals to counsel patients confidently and initiate early management.