bluuebunny/crossref_metadata_2025_split huggingface dataset:
Flow Ripple Reduction of Balanced Vane Pump for Variable Speed Drive Control in an Electric Mobile Machine
Authors: Wang Jiajia , Wang Feng , Xu Bing 
Published: October 2024

Abstract
The powertrain electrification of mobile machines is an effective method to reduce emissions and increase energy savings. Variable speed drive (VSD), has emerged as a more efficient and compact alternative for the electrified powertrain architectures. Existing vane pump technology, represented by Parker T7 Series and well-known as lower flow ripple and less noise comparing to piston pumps and gear pumps, is a promising choice for the VSD system. However, the limited performance of the balanced vane pump at low speeds hinders its further adoption. Therefore, the flow ripple characteristics of a balanced vane pump are studied across the full speed range, focusing specifically on speeds below 600 rpm. A lumped parameter model is proposed and implemented in MATLAB without relying on the computationally burdensome CFD approach. This model considers the interactions between vane radial motion and chamber pressure dynamics. Based on this model, the causes of flow ripple under low-speed conditions are analyzed. The results demonstrate that optimizing the structural parameters of the triangle groove can effectively reduce flow ripple under low-speed condition.
Sliding Mode Variable Structure Position Control for a Small-Scale Double-Cylinder Hydrostatic Actuation System
Authors: Peng Yanlin , Wang Bin 
Published: October 2024

Abstract
Small-scale two-cylinder hydrostatic actuator offers a unique advantage in narrow space operations because of its compact structure and flexible connection. However, factors such as long, thin hoses and leakage introduce significant nonlinearity into the position control system. To address these concerns and enhance both position tracking and anti-jamming capabilities, we propose a sliding mode control method with a variable structure. By implementing this control method, we aim to enhance the system capability to accurately track the desired positions, mitigating any disturbance caused by external loads effectively. Modeling and simulation of the entire system adopting this controller has been conducted to assess its performance under typical conditions. For step and sine commands without loads, the system using SMC exhibits higher accuracy and better dynamic performance compared to system using traditional PID controllers. The simulations demonstrate that the proposed method has excellent steady-state and dynamic effects on the actuator’s position control. Although there is not enough advantage in the smoothness of the displacement response, the system adopting the SMC method exhibits greater anti-jamming capabilities. In comparison to traditional PID control, the proposed method contributes to faster response and improved robustness under external disturbance.
Rb-Sr isochron method of sediment source fingerprinting reveals a fundamental shift in erosion in response to anthropogenic land use
Authors: Seal Dylan M. , Baxter Ethan F. , Snyder Noah P. , Cook Timothy L. 
Published: October 2024

Abstract
Human alterations to landscapes can greatly influence watershed-scale sedimentary processes; therefore, in this study, we test the viability of a novel Rb-Sr isotope and elemental geochemical method for fingerprinting the impacts of human land use on sediment provenance. We analyzed a ~1200-year sediment core record from Little Kennebago Lake, Maine, USA, that captures negligible anthropogenic activity pre-1900 CE, timber transport downstream during log drives (1900–1952 CE), and increased road construction and timber harvest (1952–2018 CE). 87Sr/86Sr data alone reveal several spikes, likely due to storm events, and variability but no systematic shift at the onset of logging. The pre-logging record Rb-Sr isotope data comprise an isochron corresponding to an age of 354 ± 16 Ma (two standard errors [2SE]; mean square of weighted deviates [MSWD] = 2.1, n = 33). None of the bedrock or glacial till sources that we analyzed fall along the pre-logging isochron, nor did any binary or ternary bulk rock mixtures. However, the linearity of all pre-logging samples and coincidence of the isochron age with Acadian metamorphism in the region suggests that sediment was derived from a single source in the undisturbed watershed, though that exact bedrock or glacial till source remains unclear.
The onset of logging coincides with a shift toward generally lower sediment Rb-Sr isotope ratios that are offset from the pre-logging isochron. This logging data forms a scattered pseudo-isochron with an apparent Carboniferous age of 322 ± 32 Ma (2SE; MSWD = 4.5, n = 10). No rocks of this age exist in the region. Therefore, we interpret this age to have no geologic meaning and instead reflect the introduction of new sediment sources due to logging. Logging also coincides with subtle changes in elemental geochemistry. The Big Island Pond Pluton underlies most of the northern part of the watershed and is the only catchment lithology capable of producing each geochemical change; therefore, we conclude that it was the primary new source of sediment introduced by logging. We found little variation in sediment geochemistry between the period of early log drives and later road expansion, suggesting that sediment provenance was constant once altered by the initial onset of logging, which could reflect the same source being tapped by activities in each period. We established a framework for interpreting bulk sediment Rb-Sr isotope ratios and demonstrated their viability for identifying shifts in human impacts on geomorphic processes. Our findings suggest that relative changes in sediment Rb-Sr isotope ratios are a promising tool for investigating changes to sedimentary processes not identifiable by other commonly used fingerprints and that the method should be further tested in a range of other natural and anthropogenic settings globally.
Sierra Negra, Galápagos: A resurgent-block basaltic caldera
Authors: Acocella V. , Galetto F. , Amelung F. , Aguaiza S. 
Published: October 2024

Abstract
Caldera resurgence is rare at mafic volcanoes. Here we consider the well-exposed resurgence at Sierra Negra caldera (Galápagos) to investigate how resurgence develops at a mafic system. Based on topographic and field analysis, the structure of the resurgence consists of an eastward-tilted block bounded by a fault-propagation fold activated by a steep inward-dipping reverse fault with dip decreasing toward the surface. Extension of the uplifted part of the reverse fault results from gravitational instability and is accommodated by horst-and-graben structures over a zone several hundred meters wide. Extension culminates in the main normal fault responsible for the inward tilt of the lava pile, forming a distinctive ridge. The resurgence results from spatially and temporally distinct unrest episodes, promoted by the shallow accumulation of large volumes of magma. Sierra Negra is the first documented example of piecemeal resurgence, as shown by the recent uplift episodes associated with eruptions in 2005 and 2018. The example of Sierra Negra suggests that the formation of resurgent blocks depends on the initial location of the feeding system, with non-centered feeding systems developing asymmetric (trapdoor) blocks. Finally, Sierra Negra demonstrates that mafic volcanoes without well-developed rift zones may promote resurgence when reaching a mature stage with significant amounts of cumulates, favoring shallow magma accumulation.
Geometrically Nonlinear Vibration of Sandwich Shallow Shells with Auxetic Honeycomb Core Under Periodic/Impulsive Pressure
Authors: Li Zhengzhe , Zhong Rui , Wang Qingshang , Qin Bin 
Published: October 2024

This paper presents the nonlinear vibration analysis of a sandwich shallow shell with a honeycomb core and functionally graded graphene-reinforced skins (HCFG-GRCF) under blast load, where the core layer is composed of negative Poisson’s ratio material and the three kinds of graphene distribution patterns are considered for structural face layer. First, the material properties of functionally graded graphene platelet reinforced composite (FG-GRC) are calculated using the extended Halpin–Tsai model. Based on the First-order shear deformation theory (FSDT) along with von-Karman nonlinearity, the energy function of the shallow shells is derived. Then the direct iterative method and Newton–Raphson method are, respectively, adopted to solve the nonlinear free vibration and dynamic response in the temporal domain. The applicability and accuracy of the proposed dynamic model are verified by comparing the present results with literature solutions and Finite Element Method (FEM) results. In addition, the effects of temperature, graphene fraction, thickness ratio of core to face thickness, honeycomb cell inclined angle and boundary conditions on the dynamic response of the shallow shells are systematically analyzed.
Factors Affecting the Level of Exhaustion among Public School Teachers in Catbalogan City
Authors: Aler Eleanor A. 
Published: October 2024

Teachers' exhaustion is a prevalent issue that affects their well-being and job performance. It is crucial for educational institutions and policymakers to address these factors and implement strategies to support and prioritize the well-being of teachers. Teaching is a demanding profession that requires high levels of energy and commitment. The study aimed to assess the factors affecting the level of exhaustion of single and married teachers in public schools in Catbalogan City Division. This study utilized a descriptive-correlational research design. Accordingly, "Financial Background”, and "Financial Components” ranked 1st, and 2nd among 7 factors affecting exhaustions to teacher-respondents, thus, the Composite Mean= 3.65 with descriptive interpretation of “Agree.” Further, there was a low positive association between Civil Status, and Years of Teaching; and Level of Exhaustion. Moreover, there was no significant correlation between Civil Status and Level of Exhaustion. The findings suggest a complex interplay between civil status, years of teaching, and levels of exhaustion among educators. While years of teaching experience shows a low positive association with exhaustion, civil status alone does not significantly correlate with exhaustion levels. Future research could further explore the specific contextual factors in Catbalogan City and similar settings to better understand the dynamics of teacher exhaustion. Additionally, longitudinal studies could provide insights into how teachers' experiences of exhaustion evolve over time and the role of coping strategies in mitigating burnout.
Adherence to Pediatric Screening
Authors: Gauen Abigail M. , Wang Yaojie , Perak Amanda M. , Davis Matthew M. , Rosenman Marc , Lloyd‐Jones Donald M. , Zmora Rachel , Allen Norrina B. , Petito Lucia C. 
Published: October 2024

BackgroundPreventive screenings in children encourage maintenance of optimal cardiovascular health, but gaps may exist between recommendations and clinical practice. We evaluated adherence to pediatric guidelines for universal age‐based and risk‐based screening for body mass index, blood pressure, lipids, and blood glucose.Methods and ResultsWe used 2010 to 2018 ambulatory visit data from children aged 2 to 12 years within CAPRICORN (Chicago Area Patient‐Centered Outcomes Research Network), an electronic health record network in Chicago. This study included 87 549 children who attended 197 559 well‐child encounters. Across all encounters, children were 51.5% male and mean (SD) age 6.4 (3.3) years. For each child who attended a well‐child visit and met age and/or risk‐based criteria, receipt of body mass index, blood pressure, lipids, and/or hemoglobin A1c or fasting blood glucose measurements were assessed. We used generalized estimating equations to calculate proportion adherence for each metric overall and stratified by age, sex, race and ethnicity, and insurance status. Universal age‐based screening prevalence (95% CI) per 100 eligible visits was 77.1 (76.8–77.3) for body mass index, 33.4 (33.1–33.7) for blood pressure, and 9.6 (9.3–9.9) for lipids. Risk‐based screening prevalence (95% CI) per 100 eligible visits was 13.9 (12.2–15.9) for blood pressure, 6.9 (6.4–7.5) for lipids, and 13.3 (12.6–14.1) for blood glucose.ConclusionsEarly screening of cardiovascular health risk factors could lead to earlier interventions, which could alter cardiovascular health trajectories across the lifetime. Low‐to‐moderate levels of adherence to universal age‐based and risk‐based cardiovascular health screening highlight the gap between recommendations and clinical practice, emphasizing the need to understand and address barriers to screening in pediatric populations.
Specific Morphology of Coronary Artery Aneurysms in Mainly White Patients With Kawasaki Disease: Initial Data From the Cardiac Catheterization in Kawasaki Disease Registry
Authors: Weisser Julia , Arnold Leonie , Wällisch Wolfgang , Quandt Daniel , Opgen‐Rhein Bernd , Riede Frank‐Thomas , Gräfe Florentine , Michel Jörg , Arnold Raoul , Schneider Heike , Tanase Daniel , Herberg Ulrike , Happel Christoph , Tietje Mali , Tarusinov Gleb , Grohmann Jochen , Hummel Johanna , Rudolph André , Haas Nikolaus , Jakob André 
Published: October 2024

Background
Patients with Kawasaki disease (KD) with coronary artery involvement require long‐term cardiac care. Although respective evidence‐based recommendations are missing, cardiac catheterization is still considered the gold standard for diagnosing detailed coronary pathology. Therefore, to better understand coronary artery pathology development, we conducted a survey to document and evaluate cardiac catheterization data in a European population.

Methods and Results
We retrospectively analyzed cardiac catheterization data from KD children from the year 2010 until April 2023. This registry covers basic acute‐phase clinical data, and more importantly, detailed information on morphology, distribution, and the development of coronary artery pathologies. A total of 164 mainly White patients (65% boys) were included. A relevant number of patients had no coronary artery aneurysm (CAA) at the cardiac catheterization, indicating that distal CAAs were almost exclusively detected alongside proximal CAAs. Patients with multiple CAAs revealed a significant positive correlation between the number of CAAs and their dimensions in diameter and in length. Location of the CAA within the coronary artery, age at onset of KD, or natal sex did not significantly influence CAA diameters, but CAAs were longer in older children and in boys.

Conclusions
That distal CAAs were only present together with proximal ones will hopefully reduce diagnostic CCs in patients with KD without echocardiographically detected proximal CAAs. Furthermore, this study gives valuable insights into dimensional specifics of CAAs in patients with KD. As an ongoing registry, future analyses will further explore long‐term outcomes and performed treatments, helping to refine clinical long‐term strategies for patients with KD.

REGISTRATION

URL:
https://drks.de/
; Unique Identifier: DRKS00031022.
Bayesian Model Projecting Cardiovascular Disease Related Mortality Trends in the United States
Authors: Deo Salil V. , Al‐Kindi Sadeer , Salerno Pedro R. V. O. , Cotton Antoinette , Elgudin Yakov , Virani Salim S. , Nasir Khurram , Petrie Mark C. , Sattar Naveed , Rajagopalan Sanjay 
Published: October 2024

Background
As future cardiovascular disease mortality trends have public health implications, we aimed to project ischemic heart disease (IHD), cerebrovascular disease (CeVD), and heart failure (HF) mortality rates for adults (40–79 years).

Methods and Results
In this population‐level study, we linked the yearly mortality rates (per 100 000 US residents) (2000–2019) with IHD, CeVD, or HF as the primary cause of death from the Centers for Disease Control and Prevention Wide‐Ranging Online Data for Epidemiologic Research with the midyear US population estimates (2000–2035) for adults (40–79 years). We calculated the observed age‐standardized mortality rates (2000–2019) (per 100 000 residents) (aSMR) and fitted Bayesian age‐period‐cohort models to project aSMR for IHD, CeVD, and HF up to 2035 in the United States. Between 2019 (last year of observed data) and 2035 (last year of projected results), the US population (40–79 years) will increase by 16% and age. The IHD aSMR will reduce from 111.9 (in 2019) to 81.8 (66.7–96.9) in 2035, an effect observed for all age groups. The CeVD aSMR will remain comparable between 2019 (37.4) and 2035 (38.6 [30.7–46.5]). The HF aSMR will increase from 16.5 in 2019 to reach 30.9 (13–48.8) in 2035; such increases were observed in all age groups.

Conclusions
In the United States, between 2020 and 2035, the aSMR for IHD is expected to decrease, for CeVD will remain stable, and for HF will increase substantially. These data can inform resource allocation for future public health initiatives.
Procedural Volume and Outcomes After Septal Reduction Therapies in Hypertrophic Obstructive Cardiomyopathy
Authors: Patel Nirav , Shetty Naman S. , Gaonkar Mokshad , Shahid Abdulla , Divekar Girija P. , Pampana Akhil , Vekariya Nehal , Li Peng , Ahmed Mustafa I. , Arora Garima , Arora Pankaj 
Published: October 2024

Background
Septal myectomy and alcohol septal ablation (ASA) are septal reduction therapies for patients with symptomatic obstructive hypertrophic cardiomyopathy. Operator and hospital volume may influence outcomes, but contemporary data on this relationship are limited.

Methods and Results

This retrospective cohort study used data from the Vizient Clinical Data Base (2016–2022). Patients with undergoing septal myectomy and ASA were identified using
International Classification of Diseases, Tenth Revision, Clinical Modification
(
ICD‐10‐CM
) codes and stratified into low‐, medium‐, and high‐volume groups based on annualized operator and hospital volumes. The outcomes were 30‐day in‐hospital mortality and 90‐day readmission, analyzed using multivariable adjusted logistic and Cox models. Among 5725 patients with hypertrophic cardiomyopathy (3990 septal myectomy; 1735 ASA), most operators and hospitals performed <10 procedures annually. For septal myectomy, low‐volume operators were associated with higher odds of 30‐day mortality (adjusted odds ratio [aOR], 1.86 [95% CI, 1.11–3.15]) and greater risk for 90‐day readmission (aOR, 1.51 [95% CI, 1.22–1.88]), and medium‐volume operators had higher odds of 30‐day mortality (aOR, 1.93 [95% CI, 1.05–3.55]). Medium‐volume hospitals had higher 30‐day mortality (aOR, 2.29 [95% CI, 1.32–3.99]), with low‐volume hospitals showing greater risk for 90‐day readmission (aOR, 1.60 [95% CI, 1.14–2.23]). For ASA, low‐ and medium‐volume operators had increased 30‐day mortality (aOR, 2.99 [95% CI, 1.15–7.75] and aOR, 3.86 [95% CI, 1.30–11.46]), but the risk of 90‐day readmission was similar. Hospital volumes did not significantly impact outcomes for ASA.

Conclusions
Low operator and hospital volumes were associated with worse outcomes for septal reduction therapies, emphasizing the need to refer patients with hypertrophic cardiomyopathy to high‐volume centers with experienced operators.
Challenges in the measurement and interpretation of dynamic functional connectivity
Authors: Laumann Timothy O. , Snyder Abraham Z. , Gratton Caterina 
Published: October 2024

Abstract
In functional MRI (fMRI), dynamic functional connectivity (dFC) typically refers to fluctuations in measured functional connectivity on a time scale of seconds. This perspective piece focuses on challenges in the measurement and interpretation of functional connectivity dynamics. Sampling error, physiological artifacts, arousal level, and task state all contribute to variability in observed functional connectivity. In our view, the central challenge in the interpretation of functional connectivity dynamics is distinguishing between these sources of variability. We believe that applications of functional connectivity dynamics to track spontaneous cognition or as a biomarker of neuropsychiatric conditions must contend with these statistical issues as well as interpretative complications. In this perspective, we include a systematic survey of the recent literature, in which sliding window analysis remains the dominant methodology (79%). We identify limitations with this approach and discuss strategies for improving the analysis and interpretation of sliding window dFC by considering the time scale of measurement and appropriate experimental controls. We also highlight avenues of investigation that could help the field to move forward.
Rethinking Mahjar Literature and the Arab Nahḍah: Jubrān’s Critical Intervention
Authors: Arslane Ghazouane 
Published: October 2024

Abstract
This paper foregrounds the ways in which Jubrān Khalīl Jubrān represents and addresses the project and concept of the Nahḍah. It demonstrates how the Arab renaissance is represented and engaged in Jubrān’s work as a polyvocal and contested space in which the particular and the universal dialectically and creatively intersect. Equally, it argues that a constant emphasis on individual and collective moral autonomy (al-istiqlāl al-maʿnawī) undergirds Jubrān’s Nahḍawī vision. Serving as the premise of creative aesthetic production, moral autonomy transforms the role of the poet from a crafter (ṣāniʿ) into a creator of a new mode of thinking/being in the world. It also functions as the sine qua non of original national and civilizational awakening, which is conceived of beyond traditionalism and westernization. This Nahḍawī engagement at once underlies and straddles poetics and politics, forcing us to re-evaluate Jubran’s role as a renaissance intellectual within and beyond the frameworks of literary Romanticism and postcolonialism.
Biology, morphometric and integrative taxonomy of litchi fruit borer, Conopomorpha sinensis Bradley, 1986: A major pest of litchi (Litchi chinensis Sonn.)
Authors: Pasam Maheswara Reddy , Longchar Imtinaro , Choudhary Jaipal S. , Maiti Chandan S. , Devi Hijam Shila , Neog Pankaj , Banik Susanta 
Published: October 2024

Abstract
Conopomorpha sinensis (Lepidoptera: Gracillariidae), commonly known as the litchi fruit borer, is a devastating pest of litchi, leading to substantial economic losses in fruit production. The present study was incepted to supplement updated information on biology, morphometrics, integrative taxonomy, and phylogenetic analysis of C. sinensis. The duration of developmental stages such as egg, larval, pre-pupal, pupal, male and female adult lasts for 3.45 ± 1.13, 11.10 ± 2.52, 2.05 ± 0.51, 5.85 ± 0.88, 5.55 ± 1.00, and 9.00 ± 1.12 days, respectively. The average fecundity was 33.10 ± 6.84 eggs/female. The head capsule width for five larval instars was 0.11 ± 0.01, 0.18 ± 0.02, 0.34 ± 0.01, 0.58 ± 0.04, and 0.64 ± 0.06 mm, respectively. Phylogenetic analysis revealed distinct species-groups formed by C. sinensis with other fruit borer species considered (C. cramerella, C. litchiella Bradley, and Thaumatotibia batrachopa (Meyrick)). Understanding the life cycle of C. sinensis and its correct identification is crucial for targeted pest control strategies. Traditional and molecular taxonomy assist in rapid and accurate species identification and understanding of the evolutionary relationships among Conopomorpha species.