bluuebunny/crossref_metadata_2025_split huggingface dataset:
Predictors and clinical significance of pericardial effusions after pediatric heart transplantation
Authors: McAree Daniel , Yu Sunkyung , Schumacher Kurt R. , Lowery Ray , McCormick Amanda D. , Thorsson Thor , Peng David M. 
Published: September 2021

AbstractBackgroundWe aimed to describe the incidence, risk factors, and clinical outcomes of pericardial effusions within 6 months after pediatric heart transplantation (HT).MethodsA single‐center retrospective cohort study was performed on all pediatric HT recipients from 2004 to 2018. Logistic regression was used to identify factors associated with pericardial effusions post‐HT, and survival was compared using log‐rank test.ResultsDuring the study period, 97 HTs were performed in 93 patients. Fifty patients (52%) had a ≥small pericardial effusion within 6 months, 16 of which were, or became, ≥moderate in size. Pericardial drain was placed in 8 patients. In univariate analysis, larger recipient body surface area (p = .01) and non‐congenital heart disease (p = .002) were associated with pericardial effusion development. Donor/recipient size ratios, post‐HT hemodynamics, and rejection did not correlate with pericardial effusion development. In multivariable analysis, non‐congenital heart disease (adjusted odds ratio 3.3, p = .01) remained independently associated with development of pericardial effusion. There were no significant differences in post‐HT survival between patients with and without ≥small (p = .68) or ≥moderate pericardial effusions (p = .40).ConclusionsPericardial effusions are common after pediatric HT. Patients with cardiomyopathy, or non‐congenital heart disease, were at higher risk for post‐HT pericardial effusions. Pericardial effusions increased morbidity but had no effect on mortality in our cohort. The risk factors identified may be used for anticipatory guidance in pediatric HT.
Satisfied or dissatisfied: The determinants of Global Korea Scholarship recipients’ satisfaction with life in Korea
Authors: Jon Jae‐Eun , Ayhan Kadir Jun 
Published: September 2021

AbstractSponsored international student mobility programs are important public diplomacy tools for governments. These programs’ positive outcomes are usually taken for granted and are rarely assessed. International students’ satisfaction with life in the host country is an important variable for their behavioral outcomes related to the host country. This study used data from two surveys of Global Korea Scholarship (GKS) recipients from 136 countries to examine the determinants of their satisfaction with life in Korea. We found that students' cognitive and affective evaluations of Korea, frequency of Korean‐language social interactions, and perceptions of their treatment by Koreans because of their nationality or religion were significant determinants of GKS students’ satisfaction with life in Korea. In terms of demographic characteristics, men, students from developing countries, and those majoring in natural sciences or engineering fields were more satisfied than their peers. We discuss the implications of these findings for public diplomacy.Related Articles in this Special IssueAyhan, Kadir Jun, and Nancy Snow. 2021. “Introduction to the Special Issue—Global Korea Scholarship: Empirical Evaluation of a non‐Western Scholarship Program from a Public Diplomacy Perspective.” Politics & Policy 49(6): 1282–1291. https://doi.org/10.1111/polp.12440.Hong, Moon Suk, Minjeong Jeon, and Kadir Jun Ayhan. 2021. “International Scholarship for Social Change? Re‐contextualizing Global Scholarship Alumni's Perceptions of Justice and Diversity in South Korea.” Politics & Policy 49(6): 1359–1390. https://doi.org/10.1111/polp.12435.Istad, Felicia, Eriks Varpahovskis, Ekra Miezan, and Kadir Jun Ayhan. 2021. “Global Korea Scholarship Students: Intention to Stay in the Host Country to Work or Study after Graduation.” Politics & Policy 49(6): 1323–1342. https://doi.org/10.1111/polp.12436.
How the helping process unfolds for clients in suicidal crises: Linking helping‐style trajectories with outcomes in online crisis chats
Authors: Cox Daniel W. , Wojcik Katharine D. , Kotlarczyk Agnieszka M. , Park Minjeong , Mickelson Johanna M. , Klonsky E. David 
Published: September 2021

AbstractObjectivesCrisis counselors’ active listening and collaborative problem‐solving helping styles have been associated with outcomes for clients in suicidal crises. These associations have been based on static conceptualizations of helping (i.e., helping style for the entire session). Our aim was to further understand how the crisis counseling helping process unfolds (i.e., helping trajectory) and helping trajectories’ association with clients’ outcomes.MethodsOnline crisis chats (N = 269) with suicidal adults were coded for crisis counselors’ helping styles (i.e., active listening and collaborative problem‐solving) and clients’ outcomes (i.e., resolved or unresolved). Each talk‐turn was coded for helping style, which were used to examine helping‐style trajectories.ResultsGrowth‐curve models indicated that helping styles varied over the course of chats and that helping trajectories were different for resolved and unresolved chats. In resolved chats, helping styles moved from primarily active listening to primarily problem‐solving—with a deceleration in the middle of chats. In unresolved chats, helping initially moved from primarily active listening to primarily problem‐solving, but this trajectory decelerated in the middle of chats and then turned back toward primarily active listening.ConclusionOur findings demonstrate that how the helping process unfolds is related to clients’ outcomes. Implications for practice and research are discussed.
Developing a theology capstone unit through the teaching and learning nexus
Authors: Macallan Brian Claude 
Published: September 2021

AbstractThe challenge of integrating best practice for teaching and learning is perennial. Within an Australian context, despite increases in student satisfaction over the decades, challenges remain concerning student classroom engagement, peer collaboration and the value and use of technology. Within my own religious and theological university environment, I have sought to address some of these challenges in the development of a Doing Theology Capstone Unit. This paper outlines the key subject information of the unit, followed by five key areas that informed the development. It is argued that by taking seriously the teaching and learning nexus, requires paying attention to these five key areas. The discussion section of this paper, therefore, explores demographics and diversity, active learning, constructive alignment, assessment and technology. These five areas are explored in relation to the developed curriculum for the Doing Theology unit. It is argued that by paying attention to these areas we can enable greater student engagement and peer‐to‐peer participation.
Phase separation of chromatin and small RNA pathways in plants
Authors: Lei Zhen , Wang Ling , Kim Eun Yu , Cho Jungnam 
Published: September 2021

SUMMARYGene expression can be modulated by epigenetic mechanisms, including chromatin modifications and small regulatory RNAs. These pathways are unevenly distributed within a cell and usually take place in specific intracellular regions. Unfortunately, the fundamental driving force and biological relevance of such spatial differentiation is largely unknown. Liquid–liquid phase separation (LLPS) is a natural propensity of demixing liquid phases and has been recently suggested to mediate the formation of biomolecular condensates that are relevant to diverse cellular processes. LLPS provides a mechanistic explanation for the self‐assembly of subcellular structures by which the efficiency and specificity of certain cellular reactions are achieved. In plants, LLPS has been observed for several key factors in the chromatin and small RNA pathways. For example, the formation of facultative and obligate heterochromatin involves the LLPS of multiple relevant factors. In addition, phase separation is observed in a set of proteins acting in microRNA biogenesis and the small interfering RNA pathway. In this Focused Review, we highlight and discuss the recent findings regarding phase separation in the epigenetic mechanisms of plants.
A Class of Different Fractional-Order Chaotic (Hyperchaotic) Complex Duffing-Van Der Pol Models and Their Circuits Implementations
Authors: Mahmoud Gamal M. , Abed-Elhameed Tarek M. , Elbadry Motaz M. 
Published: September 2021

Abstract
In this paper, we introduce three versions of fractional-order chaotic (or hyperchaotic) complex Duffing-van der Pol models. The dynamics of these models including their fixed points and their stability are investigated. Using the predictor-corrector method and Lyapunov exponents we calculate numerically the intervals of their parameters at which chaotic, hyperchaotic solutions and solutions that approach fixed points to exist. These models appear in several applications in physics and engineering, e.g., viscoelastic beam and electronic circuits. The electronic circuits of these models with different fractional-order are proposed. We determine the approximate transfer functions for novel values of fractional-order and find the equivalent tree shape model (TSM). This TSM is used to build circuits simulations of our models. A good agreement is found between both numerical and simulations results. Other circuits diagrams can be similarly designed for other fractional-order models.
Symplectic Integration for Multivariate Dynamic Spline-Based Model of Deformable Linear Objects
Authors: Khalifa Alaa , Palli Gianluca 
Published: September 2021

Abstract
Deformable linear objects (DLOs) such as ropes, cables, and surgical sutures have a wide variety of uses in automotive engineering, surgery, and electromechanical industries. Therefore, modeling of DLOs as well as a computationally efficient way to predict the DLO behavior is of great importance, in particular to enable robotic manipulation of DLOs. The main motivation of this work is to enable efficient prediction of the DLO behavior during robotic manipulation. In this paper, the DLO is modeled by a multivariate dynamic spline, while a symplectic integration method is used to solve the model iteratively by interpolating the DLO shape during the manipulation process. Comparisons between the symplectic, Runge–Kutta, and Zhai integrators are reported. The presented results show the capabilities of the symplectic integrator to overcome other integration methods in predicting the DLO behavior. Moreover, the results obtained with different sets of model parameters integrated by means of the symplectic method are reported to show how they influence the DLO behavior estimation.
Dispersion Analysis and Material Property Identification of a Circular Piezoelectric Ridge Waveguide
Authors: Yu Tai-Ho 
Published: September 2021

Abstract
This study investigates the dispersive properties of ridge waves that travel circumferentially around piezoelectric circular ridge waveguides and investigates their resonant modes. Based on the variable separation method and Hamilton's principle, the displacement of ridge waveguides is represented as the product of a cross-sectional coordinate-dependent function and the propagator along the circumference of a circular ridge waveguide. The dispersion curves of the flexural waves and resonant frequencies corresponding to ridge waveguides are solved numerically by applying the bidimensional finite element method (Bi-d FEM) and using the three-dimensional (3D) ansys package. The estimated impedance curves are compared with the predicted dispersion curves of waves from ridge waveguides to validate the proposed numerical approach. The elastic constants of the circular piezoelectric ridge waveguide are determined through an inverse scheme that is based on the modified simplex method. The numerical and experimental results show that by using the modified simplex method to inverse calculate the elastic constants and geometric parameters of the piezoelectric circular ridge waveguides, a good degree of accuracy and sensitivity can be achieved.
Determination of Mode I interlaminar Fracture Toughness of C/SiC Composite Using Taped Double Cantilever Beam and J Integral
Authors: Xu Wu , Ding Jiancan , Ge Jingran , Zhang Qi 
Published: September 2021

Abstract
Due to the low in-plane strength of C/SiC ceramic matrix composite (CMC), arm failure may occur in the classical double cantilever beam (DCB) test for determination of the mode I interlaminar fracture toughness. A taped DCB (TDCB) is designed to avoid this undesired failure mode. Exact and explicit J integral for the TDCB is derived and applied to measure the interlaminar fracture toughness of CMC. The present TDCB and J integral are demonstrated to be simple and reliable for determination of the interlaminar fracture toughness, without visual measurement of the delamination length and complex data reduction.
A High-Speed Disk Rotor Rig Design for Tip Aerothermal Research
Authors: Lu S. , Zhang Q. , He L. 
Published: September 2021

Abstract
The relative casing motion can greatly vary the over-tip-leakage (OTL) flow structure and aerothermal performance. The existing tip experimental research facilities including stationary linear cascade, cascade rigs with low-speed moving belt, or high-speed rotor rigs are either not capable of reproducing the high relative casing Mach number or extremely expensive and still difficult for optical measurement. This paper presents a high-speed disk rotor design that can simulate the high casing relative speed. The unique feature of this rig design concept is that it enables full optical access of the tip surface under the engine-representative OTL flow condition. In this paper, the feasibility of the design concept is demonstrated and assessed by Reynolds-averaged Navier–Stokes computational fluid dynamics (RANS CFD) simulation, both in component level and in whole rig system level. First-of-its-kind experimental results of spatially resolved tip heat transfer coefficient distribution at high relative casing Mach number are reported. The disk rotor rig design demonstrated in this paper can also be useful for other tip leakage flow studies.
Definite Advantages of Utilizing Integrated Multiple Indirect Inspection (IDi) Technologies to Survey a Newly Laid 3LPE Coated Cross Country Pipeline: A Case Study
Authors: Prasad Mahesh , Chanakath Sajeev , Kumar Abhishek 
Published: September 2021

Abstract
Every scientific or engineering assessment made in today’s life is with respect to a specific approach — prescriptive or performance-based. In India for a newly laid pipeline (approx. 443 Km) — there are various prescriptive regulations ascertained by OISD and PNGRB for the pipelines’ safe routine operations. In a prescriptive system, it becomes mandatory for a pipeline owner to have the most accurate coatings and Cathodic Protection (CP) data irrespective of the external soil environmental conditions. This will also require the other external aggravators such as AC interference, Railway Crossings, Temporal phenomena etc. to be taken into consideration while the survey data is being collected. Only then sufficient data is available for the Owner to make correct integrity-based decisions and step forward towards a performance-based integrity management program.
Hindustan Petroleum Corporation Limited (HPCL)-Rewari Kanpur Pipeline (RKPL) started the external line inspection (XLI) program as a prescriptive procedure for ascertaining the health of the in-place CP system and assess the integrity of the coating.This pipeline with length of approx. 443 Kms stretching across three (3) states of Haryana, Rajasthan, and Uttar Pradesh traverses through a truly varying surrounding soil and ambient environmental conditions. As per NACE Standard Practice SP0502, it is known that different aboveground survey tools are to be utilized by the pipeline owner for varying soil conditions. To overcome the complexity of dealing with varying environments, weather conditions (resulting in varying soil resistivity) for specific pipeline lengths to be surveyed by the various different technologies that may be applicable, HPCL-RKPL opted to deploy an integrated indirect inspection system which allows to perform the following aboveground surveys simultaneously, at the same time: DCVG, ACVG, ACCA (CAT), CIPS – AC & DC with all recorded raw logs for authenticity.
Using these raw logs, HPCL-RKPL were able to ascertain few intricate concerns with the in-place CP system which would have otherwise been veiled. This was possible due to the extremely high frequency of data capture on several times per second basis. The integrated CP and Coating Integrity data also aligned and correlated very well with the historically conducted in-line inspection information. This paper shall discuss the unique findings obtained during the survey.
Study protocol for a prospective process evaluation of a culturally secure rehabilitation programme for Aboriginal Australians after brain injury: the Healing Right Way project
Authors: Skoss Rachel , White Jane , Stanley Mandy J , Robinson Melanie , Thompson Sandra , Armstrong Elizabeth , Katzenellenbogen Judith M 
Published: September 2021

IntroductionAboriginal and Torres Strait Islander (hereafter respectfully referred to as Aboriginal) people are Australia’s First Peoples, having the longest continuous culture in the world and deep spiritual connections with ancestral land. Improvements in their health and well-being is a major policy goal of Australian governments, as the legacy of colonisation and disruption of cultural practices contribute to major health challenges. Lack of culturally secure services impacts participation of Aboriginal people in health services. Aboriginal people with a brain injury typically experience poor access to rehabilitation and support following hospital discharge. ‘Healing Right Way’ (HRW) is a randomised control trial aiming to improve access to interdisciplinary and culturally secure rehabilitation services for Aboriginal people after brain injury in Western Australia, improve health outcomes and provide the first best practice model. This protocol is for the process evaluation of the HRW trial.Methods and analysisA prospective mixed methods process evaluation will use the Consolidated Framework for Implementation Research to evaluate implementation and intervention processes involved in HRW. Data collection includes qualitative and quantitative data from all sites during control and intervention phases, relating to three categories: (1) implementation of trial processes; (2) cultural security training; and (3) Aboriginal Brain Injury Coordinator role. Additional data elements collected from HRW will support the process evaluation regarding fidelity and intervention integrity. Iterative cross-sectional and longitudinal data synthesis will support the implementation of HRW, interpretation of findings and inform future development and implementation of culturally secure interventions for Aboriginal people.Ethics and disseminationThis process evaluation was reviewed by The University of Western Australia Human Research Ethics Committee (RA/4/20/4952). Evaluation findings will be disseminated via academic mechanisms, seminars at trial sites, regional Aboriginal health forums, peak bodies for Aboriginal health organisations and the Australian Indigenous HealthInfoNet (https://healthinfonet.ecu.edu.au/).Trial registration numberACTRN12618000139279.
Standard automated perimetry using size III and size V stimuli in advanced stage glaucoma: an observational cross-sectional comparative study
Authors: Sood Devindra , Czanner Gabriela , Somerville Tobi , Sood Ishaana , Rowe Fiona J 
Published: September 2021

ObjectivesIn this study, we sought to evaluate the extent of further visual field that could be assessed when using stimulus size V in standard automated perimetry compared with size III in advanced stage glaucoma and whether cut-off values could be determined for when to switch from size III to size V.DesignProspective cross-sectional study.SettingSingle-centre outpatient eye clinic in India (New Delhi).ParticipantsAdvanced stage glaucoma defined as stages 3–4.InterventionCentral static perimetry with Octopus 900 G programme (size III stimulus dynamic strategy) and low vision central programme (size V stimulus dynamic strategy).Primary and secondary outcome measuresVisual field assessment for right and left eyes with both sizes III and V were undertaken within one clinic visit.ResultsWe recruited 126 patients (170 eyes). Mean patient age at assessment was 55.86 years (SD 15.15). Means (SD) for size III versus size V, respectively, were 6.94 dB (5.58) and 12.98 dB (7.77) for mean sensitivity, 20.02 dB (5.67) and 19.22 dB (7.74) for mean deviation, 5.89 dB (2.29) and 7.69 dB (2.78) for standard loss variance and 3.32 min (1.07) and 6.40 min (1.43) for test duration. All except mean deviation were significantly different between size III and V tests.ConclusionUseful visual field information was obtained with size V stimuli which allowed continued monitoring of these patients that was not possible with size III. Increased test duration, standard loss variance and mean sensitivity were found with size V, as expected, given that more visual responses were obtained with the increased target size. A switch from size III to V may be considered when mean sensitivity reaches 10 dB and/or mean deviation reaches 18 dB.
Open-label, randomised, clinical trial to evaluate the immunogenicity and safety of a prophylactic vaccination of healthcare providers by administration of a heterologous vaccine regimen against Ebola in the Democratic Republic of the Congo: the study protocol
Authors: Larivière Ynke , Zola Trésor , Stoppie Elke , Maketa Vivi , Matangila Junior , Mitashi Patrick , De Bie Jessie , Muhindo-Mavoko Hypolite , Van geertruyden Jean-Pierre , Van Damme Pierre 
Published: September 2021

IntroductionThis article describes the protocol of an Ebola vaccine clinical trial which investigates the safety and immunogenicity of a two-dose prophylactic Ebola vaccine regimen comprised of two Ebola vaccines (Ad26.ZEBOV and MVA-BN-Filo) administered 56 days apart, followed by a booster vaccination with Ad26.ZEBOV offered at either 1 year or 2 years (randomisation 1:1) after the first dose. This clinical trial is part of the EBOVAC3 project (an Innovative Medicines Initiative 2 Joint Undertaking), and is the first to evaluate the safety and immunogenicity of two different booster vaccination arms in a large cohort of adults.Methods and analysisThis study is an open-label, monocentric, phase 2, randomised vaccine trial. A total of 700 healthcare providers and frontliners are planned to be recruited from the Tshuapa province in the Democratic Republic of the Congo (DRC). The primary and secondary objectives of the study assess the immunogenicity of the first (Ad26.ZEBOV), second (MVA-BN-Filo) and booster (Ad26.ZEBOV) dose. Immunogenicity is assessed through the evaluation of EBOV glycoprotein binding antibody responses after vaccination. Safety is assessed through the collection of serious adverse events from the first dose until 6 months post booster vaccination and the collection of solicited and unsolicited adverse events for 1 week after the booster dose.Ethics and disseminationThe protocol was approved by the National Ethics Committee of the Ministry of Health of the DRC (n°121/CNES/BN/PMMF/2019). The clinical trial was registered on 4 December 2019 on ClinicalTrials.gov. Trial activities are planned to finish in October 2022. All participants are required to provide written informed consent and no study-related procedures will be performed until consent is obtained. The results of the trial will be added on ClinicalTrials.gov, published in peer-reviewed journals and presented at international conferences.Trial registration numberNCT04186000; Pre-results.