bluuebunny/crossref_metadata_2025_split huggingface dataset:
Impact of endoscopic ultrasound examination for deep esophageal collateral veins evaluation in liver cirrhosis patients prior to endoscopic treatment: A case series
Authors: Lesmana Cosmas Rinaldi A. , Nababan Saut H. , Kalista Kemal F. , Kurniawan Juferdy , Jasirwan Chyntia O. M. , Sulaiman Andri S. , Hasan Irsan , Gani Rino A. 
Published: June 2022

AbstractAimThe presence of esophageal collateral veins (ECV) has been reported to be associated with the recurrence of esophageal varices (EV) and bleeding in liver cirrhotic (LC) patients. This study aimed to see the potential clinical value of deep collateral veins assessment using endoscopic ultrasound (EUS) in liver cirrhotic patients with EV.MethodsDuring 6 months period, a prospective study is conducted, where we identified LC patients who were admitted for esophagogastroduodenoscopy (EGD) screening at the Department of Internal Medicine, Dr. Cipto Mangunkusumo National General Hospital, Jakarta. ECV was examined using EUS. Patients were excluded if they had (1) liver malignancy, (2) history of ligation or glue injection, or (3) portal or splenic vein thrombus. We collected demographic data, medical history, data pertaining to use of nonselective beta blocker (NSBB), and laboratory, imaging, and endoscopy results. EGD was performed using a gastroscope (EG29‐i10, 3.2 mm Pentax Medical) while EUS was performed using a linear array echoendoscope (EG‐3870UTK, 3.8 mm, Pentax Medical) before band ligation or glue injection.ResultsThere were 20 LC patients included in this study, where 15 (75%) of patients were classified with Child–Pugh (CP)‐A and five (25%) of patients with CP‐B. The most common aetiologies were hepatitis B in seven (35%) patients and hepatitis C in nine (45%) patients. The EV with peri‐ or para‐esophageal veins (PEEV or PAEV) were detected in 65% of patients. None of the LC patients with no EV showed the presence of ECV. PEEV or PAEV were detected in grades 1–3 EV.ConclusionEUS examination can give a better evaluation before managing gastroesophageal varices through deep ECV detection in LC patients.
A New High Order Virial Equation of State and Its Application in the Chapman‐Jouguet Parameters Calculation of Explosives
Authors: Peng Yue , Long Xinping , Jiang Xiaohua , Zhang Zhiming 
Published: June 2022

AbstractIn this paper, in order to solve the deficiency of VLW (Virial‐Wu) equation of state (EOS) and VHL (Virial‐Han‐Long) EOS in describing thermodynamic relationship in high temperature region of gaseous detonation products. Based on the Mayer expansion theory of gas virial coefficients in statistical mechanics, the fourth‐order and fifth‐order dimensionless virial coefficients for Lennard‐Jones (L−J) 6–12 pair potential in a higher temperature range are calculated by using the orthogonal integral method which proposed by Barker. By fitting the theoretical calculation values, a new high order virial EOS: VPL (Virial‐Peng‐Long) EOS for gaseous detonation products is established. Implanting the VPL EOS with the properly introduced EOS of condensed carbon and condensed metal products into the detonation thermodynamic program, the Chapman‐Jouguet (CJ) detonation parameters including detonation velocity, detonation CJ pressure, and detonation temperature of some typical CHNO high explosives and some metal‐containing primary explosives are calculated and obtained. By comparing the calculated values with the experimental values, as well as the calculation values obtained by VLW EOS, VHL EOS, and EXPLO5 (using BKWG−S EOS) software, the accuracy and applicability of VPL EOS in CJ detonation parameters calaulation are analyzed and evaluated.
Left‐truncated and right‐censored field failure data: Review of parametric analysis for reliability
Authors: Emura Takeshi , Michimae Hirofumi 
Published: June 2022

AbstractIn field reliability analyses, a data collection period is given to monitor the failure events from the field. Left‐truncation arises due to early failures occurring before the data collection period, and right‐censoring arises for late failures occurring beyond the monitoring period. Naïve analyses of left‐truncated and right‐censored data lead to biased estimation of the population lifetime of interest. A variety of models and methods have been developed to analyze the left‐truncated and right‐censored data for field reliability analyses. The goal of the paper is to review the existing models and methods for fitting left‐truncated and right‐censored data. Our review includes the existing statistical models, such as the exponential, Weibull, lognormal, gamma, Gompertz, Lomax, and spline models. We comprehensively review the statistical issues of maximum likelihood estimation, model selection, residual lifetime prediction, and Bayesian methods. Some of these methods are illustrated through the field reliability analysis of the electric power transformer dataset.
Predation preference of signal crayfish (Pacifastacus leniusculus) on native and invasive bivalve species
Authors: Sanders Harry , Mills Daniel N 
Published: June 2022

AbstractPredatory, non‐native fauna can influence biodiversity and trophic dynamics in invaded ecosystems. Signal crayfish (Pacifastacus leniusculus) are a highly successful invader, which have altered freshwater benthic communities, including bivalve populations. Bivalves are a keystone freshwater group in global in decline, partly due to invasion by alien bivalve and crayfish species. However, little is known about the predatory impacts of invasive crayfish within co‐occurring native and invasive bivalve populations. Mesocosm predation choice experiments considered relative signal crayfish predation rates between paired native (Anodonta anatina and Unio tumidus) and invasive (Dreissena polymorpha, D. bugensis, and Corbicula fluminea) bivalves, and between paired invasive bivalves. All bivalves were actively predated, but there was no consistent difference in the biomass of invasive versus native bivalves consumed. However, the effects of consumption were consistently different; 18.2% of invasive bivalves were lethally predated, with 100% of surviving individuals remaining undamaged, whereas 1.1% of native bivalves were lethally predated, but 100% of surviving individuals received nonlethal damage in the form of shell chipping, which could reduce long‐term bivalve fitness in natural environments. In experiments considering paired invasive species, D. polymorpha was more resistant to predation when compared to other invasive taxa tested. The majority of field research considering aquatic invasions considers purely lethal predation effects inferred from invertebrate presence/absence. These experiments demonstrate the need to better understand both the processes and impacts of predation by invasive species, which may include substantial nonlethal effects on the fitness and life history of endangered taxa.
An Unbalanced Battle in Excellence: Revealing Effect of Ni/Co Occupancy on Water Splitting and Oxygen Reduction Reactions in Triple‐Conducting Oxides for Protonic Ceramic Electrochemical Cells
Authors: Tang Wei , Ding Hanping , Bian Wenjuan , Regalado Vera Clarita Y. , Gomez Joshua Y. , Dong Yanhao , Li Ju , Wu Wei , Fan WeiWei , Zhou Meng , Gore Colin , Blackburn Bryan M. , Luo Hongmei , Ding Dong 
Published: June 2022

AbstractPorous electrodes that conduct electrons, protons, and oxygen ions with dramatically expanded catalytic active sites can replace conventional electrodes with sluggish kinetics in protonic ceramic electrochemical cells. In this work, a strategy is utilized to promote triple conduction by facilitating proton conduction in praseodymium cobaltite perovskite through engineering non‐equivalent B‐site Ni/Co occupancy. Surface infrared spectroscopy is used to study the dehydration behavior, which proves the existence of protons in the perovskite lattice. The proton mobility and proton stability are investigated by hydrogen/deuterium (H/D) isotope exchange and temperature‐programmed desorption. It is observed that the increased nickel replacement on the B‐site has a positive impact on proton defect stability, catalytic activity, and electrochemical performance. This doping strategy is demonstrated to be a promising pathway to increase catalytic activity toward the oxygen reduction and water splitting reactions. The chosen PrNi0.7Co0.3O3−δ oxygen electrode demonstrates excellent full‐cell performance with high electrolysis current density of −1.48 A cm−2 at 1.3 V and a peak fuel‐cell power density of 0.95 W cm−2 at 600 °C and also enables lower‐temperature operations down to 350 °C, and superior long‐term durability.
Core‐Shell Engineered WO3 Architectures: Recent Advances from Design to Applications
Authors: Adhikari Sangeeta , Murmu Manasi , Kim Do‐Heyoung 
Published: June 2022

AbstractOngoing efforts to design novel materials with efficient structure‐property‐performance relations prove challenging. Core‐shell structures have emerged as novel materials with controlled production routes and highly tailorable properties that offer extensive advantages in advanced oxidation processing, particularly in photocatalysis and photoelectrochemical applications. WO3, which is an optoelectronically active semiconductor material, is a popular material in current studies in the field of photo(electro)catalysis. Considerable progress has been made using core‐shell WO3 architectures, which warrants an evaluation in terms of processing and preparedness for their use in versatile catalytic and energy storage applications. This paper presents an in‐depth assessment of core‐shell WO3 architectures by highlighting the design challenges and protocols in powder and thin‐film chemical processing. The development of specific core‐shell designs for use in targeted applications, such as H2 production, CO2 reduction, wastewater treatment, batteries, supercapacitors, and sensing, is analyzed. The fundamental role of WO3 in core‐shell structures to enhance efficiency is also discussed, along with the limitations and improvement strategies. Further, the prospects of core‐shell WO3 architectures in energy conversion and environmental applications are suggested.
Biocompatible Antibacterial Denim Fabric Prepared via Green Synthesis of the Copper Oxide Nanoparticles Using Raw Sugar Molasses
Authors: Masoudi Ghazaleh , Montazer Majid , Ezazshahabi Nazanin , Mianehro Ali , Mahmoudirad Mahnaz 
Published: June 2022

AbstractMicrobial susceptibility of the denim fabric sized by starch raises some skin health concerns about this extensively used fabric. In this work, biocompatible antibacterial denim fabric is prepared by optimized green synthesis of the copper(I) oxide (Cu2O) nanoparticles on the cotton fibers. The copper oxide nanoparticles were synthesized without using any toxic chemical to reduce the copper salt. As an alternative, the waste of the sugar refinery factory, molasses, was used as eco‐friendly and cost‐efficient material. The antibacterial activity of the samples against Candida albicans as model fungus, Escherichia coli as Gram‐negative, and Staphylococcus aureus as Gram‐positive model bacteria is investigated besides cytotoxicity; also, the synthesis process is optimized regarding the most biocompatible and antibacterial nanocomposite. The characterizations prove the effectiveness of the molasses for reduction of the copper salt and formation of the copper(I) oxide (Cu2O) nanoparticles. Synthesis of the copper(I) oxide (Cu2O) nanoparticles has a positive effect on the mechanical properties of the nanocomposite. The results of this work introduce a green method for sustainable development of the fabric industry; it also presents a potential application for molasses and reutilizing it.
A rare lysosomal storage disorder: Feline mucopolysaccharidosis VII
Authors: Smith Colin , Snead Elisabeth C. , Sukut Sally , Veldhuisen Douglas 
Published: June 2022

AbstractA 9‐week‐old, male domestic shorthair presented with a 2‐week history of progressive hindlimb weakness and reduction in normal play behaviour. At 17 weeks of age, the patient exhibited progressive hindlimb paresis and ataxia and had developed facial dysmorphia and bilateral corneal clouding, prompting investigation into a mucopolysaccharidosis disorder. Peripheral blood cytology, increased urinary glycosaminoglycan excretion and radiographic findings (generalised epiphyseal dysplasia, coxofemoral luxation and vertebral fusion) suggested mucopolysaccharidosis. Definitive diagnosis was obtained through serum enzymatic testing, which yielded a complete deficiency in β‐glucuronidase and increased compensatory activity in α‐L‐iduronidase and B‐arylsulfatase. This pattern was consistent with a diagnosis of feline mucopolysaccharidosis VII, and palliative therapy was initially implemented. The patient ultimately died at 21 months of age.
Exposure of Coastal Ecosystem Services to Natural Hazards in the Bangladesh Coast
Authors: Roy Sanjoy , Depellegrin Daniel 
Published: June 2022

Significance StatementKnowledge about the impacts of natural hazards on ecosystem services is crucial to guide the effective management of ecosystem components in a particular landscape. The coastal landscape of Bangladesh is a source of numerous ecosystem services on one hand and also exposed to natural hazards, especially to tropical cyclones on the other hand. Almost every year the tropical cyclones and associated storm surges cause severe devastation to the ecosystem services in the eastern coastal region of the country. We for the very first time in Bangladesh applied the remote sensing method with the Millennium Assessment technique to map coastal ecosystem service capacity and assess their degree of exposure to the tropical cyclone in the eastern coastal region of the country. Our study identifies the aquatic environments, mangrove and hilly forests having the highest potentials of ecosystem service capacity, which needs to be protected from the natural hazards through implementing appropriate land use and nature-focused disaster management policies for sustainable, equitable, and effective use of the ecological resources.
On the Difference Between Shared Memory and Shared Address Space in HPC Communication
Authors: Hori Atsushi , Ouyang Kaiming , Gerofi Balazs , Ishikawa Yutaka 
Published: June 2022

AbstractShared memory mechanisms, e.g., POSIX shmem or XPMEM, are widely used to implement efficient intra-node communication among processes running on the same node. While POSIX shmem allows other processes to access only newly allocated memory, XPMEM allows accessing any existing data and thus enables more efficient communication because the send buffer content can directly be copied to the receive buffer. Recently, the shared address space model has been proposed, where processes on the same node are mapped into the same address space at the time of process creation, allowing processes to access any data in the shared address space. Process-in-Process (PiP) is an implementation of such mechanism. The functionalities of shared memory mechanisms and the shared address space model look very similar – both allow accessing the data of other processes –, however, the shared address space model includes the shared memory model. Their internal mechanisms are also notably different. This paper clarifies the differences between the shared memory and the shared address space models, both qualitatively and quantitatively. This paper is not to showcase applications of the shared address space model, but through minimal modifications to an existing MPI implementation it highlights the basic differences between the two models. The following four MPI configurations are evaluated and compared; 1) POSIX Shmem, 2) XPMEM, 3) PiP-Shmem, where intra-node communication is implemented to utilize POSIX shmem but MPI processes share the same address space, and 4) PiP-XPMEM, where XPMEM functions are implemented by the PiP library (without the need for linking to XPMEM library). Evaluation is done using the Intel MPI benchmark suite and six HPC benchmarks (HPCCG, miniGhost, LULESH2.0, miniMD, miniAMR and mpiGraph). Most notably, mpiGraph performance of PiP-XPMEM outperforms the XPMEM implementation by almost 1.5x. The performance numbers of HPCCG, miniGhost, miniMD, LULESH2.0 running with PiP-Shmem and PiP-XPMEM are comparable with those of POSIX Shmem and XPMEM. PiP is not only a practical implementation of the shared address space model, but it also provides opportunities for developing new optimization techniques, which the paper further elaborates on.
Evaluating GPU Programming Models for the LUMI Supercomputer
Authors: Markomanolis George S. , Alpay Aksel , Young Jeffrey , Klemm Michael , Malaya Nicholas , Esposito Aniello , Heikonen Jussi , Bastrakov Sergei , Debus Alexander , Kluge Thomas , Steiniger Klaus , Stephan Jan , Widera Rene , Bussmann Michael 
Published: June 2022

AbstractIt is common in the HPC community that the achieved performance with just CPUs is limited for many computational cases. The EuroHPC pre-exascale and the coming exascale systems are mainly focused on accelerators, and some of the largest upcoming supercomputers such as LUMI and Frontier will be powered by AMD Instinct™ accelerators. However, these new systems create many challenges for developers who are not familiar with the new ecosystem or with the required programming models that can be used to program for heterogeneous architectures. In this paper, we present some of the more well-known programming models to program for current and future GPU systems. We then measure the performance of each approach using a benchmark and a mini-app, test with various compilers, and tune the codes where necessary. Finally, we compare the performance, where possible, between the NVIDIA Volta (V100), Ampere (A100) GPUs, and the AMD MI100 GPU.
Evaluating Methods of Transferring Large Datasets
Authors: Kopeć Jakub 
Published: June 2022

AbstractOur society critically depends on data, Big Data. The humanity generates and moves data volumes larger than ever before and their increase is continuously accelerating. The goal of this research is to evaluate tools used for the transfer of large volumes of data. Bulk data transfer is a complex endeavour that requires not only sufficient network infrastructure, but also appropriate software, computing power and storage resources. We report on the series of storage benchmarks conducted using recently developed elbencho tool. The tests were conducted with an objective to understand and avoid I/O bottlenecks during data transfer operation. Subsequently Ethernet and InfiniBand networks performance was compared using Ohio State University bandwidth benchmark (OSU BW) and iperf3 tool. For comparison we also tested traditional (very inefficient) Linux scp and rsync commands as well as tools designed specifically to transfer large datasets more efficiently: bbcp and MDTMFTP. Additionally the impact of using simultaneous multi-threading and Ethernet jumbo frames on transfer rate was evaluated.
Service Function Chaining Design & Implementation Using Network Service Mesh in Kubernetes
Authors: Bittar Abdullah , Wang Ziqiang , Aghasharif Amir , Huang Changcheng , Shami Gauravdeep , Lyonnais Marc , Wilson Rodney 
Published: June 2022

AbstractService Function Chaining (SFC) in a cloud-native environment is becoming essential as more users move towards clouds today. Cloud-native environments utilize container-based microservices to provide software solutions. Integrating SFC with container-based microservices introduces new challenges. This paper exploited Network Service Mesh (NSM) framework features to create a service function chain on a multi-node Kubernetes cluster. We focus on the design and implementation of SFC in Kubernetes using NSM. Also, we deployed our custom-built containers in the Kubernetes cluster to create a service function chain. Hence, we demonstrate how an SFC is designed in a cloud-native environment rather than a traditional NFV/SDN approach. Furthermore, to evaluate the performance, we compare different frameworks that support SFC in Kubernetes, highlighting the advantage and disadvantages of each framework.
Telling in a Test: Storytelling and Task Accomplishment in L2 Oral Proficiency Assessment
Authors: Sandlund Erica 
Published: June 2022

AbstractMany tests of second language (L2) oral proficiency (OP) include speaking tasks designed to generate narrative talk. From an assessment perspective, frequent turn shifts and a displayed ability to understand and build upon prior talk are generally favored. As storytelling operates through a temporary suspension of ordinary mechanisms for turn-taking, tellings in tests may present challenges for test-takers as well as examiners. This study draws on a corpus of 71 recorded high-stakes tests of oral proficiency and interaction in English in Swedish compulsory school. Test-takers are Swedish 9th graders participating in the compulsory National Test of English, a paired or small group test using topic cards to prompt peer interaction. Drawing on a conversation analytic approach to test interaction and interactional competence, (Young and He, in Talking and testing: Discourse approaches to the assessment of oral proficiency, John Benjamins, (1998); Salaberry and Kunitz, in Teaching and testing L2 interactional competence: Bridging theory and practice, Routledge, (2019)), the study centres on when and how participants recruit small stories for task accomplishment by inviting, resisting, or volunteering tellings. The analysis identifieswhentellings are made relevant across task types, andhowthese local occasionings are oriented to by test-takers. Findings point to the complexity of storytellingsin test contexts, as test-takers often do not treat narratives as relevant or appropriate contributions in the institutional frame of testing.
Crouzeix-Raviart finite element method for non-autonomous variational problems with Lavrentiev gap
Authors: Balci Anna Kh. , Ortner Christoph , Storn Johannes 
Published: June 2022

AbstractWe investigate the convergence of the Crouzeix-Raviart finite element method for variational problems with non-autonomous integrands that exhibit non-standard growth conditions.
While conforming schemes fail due to the Lavrentiev gap phenomenon, we prove that the solution of the Crouzeix-Raviart scheme converges to a global minimiser. Numerical experiments illustrate the performance of the scheme and give additional analytical insights.