bluuebunny/crossref_metadata_2025_split huggingface dataset:
Comprehensive analysis of Vibrio alginolyticus: Environmental risk factors in the cultured Gilthead seabream (Sparus aurata) under seasonal fluctuations and water parameter alterations
Authors: Aly Salah M. , Elatta Mohamed A. , ElBanna Noha I. , El‐Shiekh Mustafa A. , Mabrok Mahmoud , Kelany Mahmoud S. , Fathi Mohamed 
Published: September 2023

AbstractThis study aimed to investigate the relationship between seasonal variations, water parameters and the prevalence of Vibriosis in Gilthead seabream. A total of 160 Gilthead seabream fish were sampled over the course of 1 year from private earthen pond farms in the Suez Canal area and examined for abnormalities and internal lesions. Vibrio alginolyticus, the causative agent of Vibriosis, was isolated and characterized from the sampled Gilthead seabream fish. The study revealed a significant correlation between different seasons and the prevalence of V. alginolyticus, with lower occurrence during autumn. Analysis of water parameters showed that toxic ammonia concentration was not effective in distinguishing between positive and negative cases of V. alginolyticus. Dissolved oxygen showed weak predictive ability for the occurrence of V. alginolyticus, while temperature demonstrated moderate potential as a predictor of its prevalence. pH values, organic matter concentrations and salinity showed no significant association with the occurrence of V. alginolyticus. Experimental challenges highlighted the vulnerability of Gilthead seabream to V. alginolyticus and emphasized the impact of environmental factors, such as pH and toxic ammonia, on their mortality and survival. The study emphasizes the importance of considering seasonal changes and water quality parameters in managing V. alginolyticus in mariculture. It underscores the need for careful monitoring and control of environmental factors to ensure the health and well‐being of cultured fish populations. The findings contribute to our understanding of Vibriosis management and provide valuable insights for developing effective strategies in the aquaculture industry.
Efficacy and safety of digital therapeutic application of Sleep Index‐Based Treatment for Insomnia (dSIBT‐I): a pilot study
Authors: Chung Seockhoon , Cho Inn‐Kyu , Kim Jiyoung , Lee Dongin , Cho Eulah , Choi Jung Mun , Ha Tae Kyoung , Lee Young Jun , Kim Ji Hyun , Choi Ji Ho 
Published: September 2023

SummaryThe aim of this study was to evaluate the safety and efficacy of digital therapeutic application of Sleep Index‐Based Treatment for Insomnia (dSIBT‐I) and compare them with those of digital application of Cognitive Behavioural Therapy for Insomnia (dCBT‐I). This randomised prospective pilot study was conducted at the Asan Medical Center. A total of 50 patients with insomnia were recruited between December 2022 and January 2023 and randomly allocated to the dSIBT‐I or dCBT‐I group. The study was carried out for one month. The primary outcome was the significant reduction in Insomnia Severity Index score at Week 4 compared to baseline, while the secondary outcome was proportion of participants whose Insomnia Severity Index scores were reduced to <15 at Week 4. We performed linear mixed model and generalised estimating equation analyses. Both dSIBT‐I and dCBT‐I groups showed significant improvements in Insomnia Severity Index scores at Week 4. There was no significant difference between two groups in terms of Insomnia Severity Index scores at Week 4 (group × time effect, F = 1.07, p = 0.382) and proportion of participants whose Insomnia Severity Index scores were reduced to <15 at Week 4 (group × time effects, F = 1.80, p = 0.615). However, at Week 2, the dSIBT‐I group showed better results than the dCBT‐I group in terms of both Insomnia Severity Index scores (p = 0.044) and proportion of participants whose Insomnia Severity Index scores were reduced to <15 (82.6% vs. 48.0%, p = 0.017). No treatment‐emergent adverse events were reported in either group. The dSIBT‐I is a safe and effective therapy for insomnia, with rapid treatment effects.
Give me a U, give me a V, give me an L!: How effective are countercyclical policies in shaping the output dynamic during recessions
Authors: Castañeda Gonzalo , Castro Peñarrieta Luis 
Published: September 2023

AbstractIn this paper, we argue that studying recession events through the shapes observed in sequences of GDP data can help to avoid methodological complications and offer new insights to traditional inquiries. With a set of 147 recession events from 77 countries, we analyze whether the shape of the output dynamic might be affected by the application of countercyclical policies. Firstly, we apply a machine learning technique to discover and cluster the shapes (or ‘shapelets’) that prevail in empirical spells. Secondly, we use a multinomial model to study fiscal and monetary interventions, in which we specify the categorical variable with a set of statistically different shapelets. Not only do we find strong empirical evidence that it is possible to overcome a recession through countercyclical policies, but also that there are non‐linear effects that make it more likely when the strength of these policies crosses certain thresholds.
ABA is required for differential cell wall acidification associated with root hydrotropic bending in tomato
Authors: Li Ying , Chen Yadi , Jiang Shuqiu , Dai Hui , Xu Weifeng , Zhang Qian , Zhang Jianhua , Dodd Ian C. , Yuan Wei 
Published: September 2023

AbstractHydrotropism is an important adaptation of plant roots to the uneven distribution of water, with current research mainly focused on Arabidopsis thaliana. To examine hydrotropism in tomato (Solanum lycopersicum) primary roots, we used RNA sequencing to determine gene expression of root tips (apical 5 mm) on dry and wet sides of hydrostimulated roots grown on agar plates. Hydrostimulation enhances cell division and expansion on the dry side compared with the wet side of the root tip. In hydrostimulated roots, the abscisic acid (ABA) biosynthesis gene ABA4 was induced more on the dry than the wet side of root tips. The ABA biosynthesis inhibitor Fluridone and the ABA‐deficient mutant notabilis (not) significantly decreased hydrotropic curvature. Wild‐type, but not the ABA biosynthesis mutant not, root tips showed asymmetric H+ efflux, with greater efflux on the dry than on the wet side of root tips. Thus, ABA mediates asymmetric H+ efflux, allowing the root to bend towards the wet side to take up more water.
Immune response, phenotyping and molecular graft surveillance in kidney transplant recipients following severe acute respiratory syndrome coronavirus 2 vaccination
Authors: Ali Nicole M , Herati Ramin S , Mehta Sapna A , Leonard Jeanette , Miles Jake , Lonze Bonnie E , DiMaggio Charles , Tatapudi Vasishta S , Stewart Zoe A , Alnazari Nasser , Neumann Henry J , Thomas Jeffrey , Cartiera Katarzyna , Weldon Elaina , Michael Jennifer , Hickson Christopher , Whiteson Harris , Khalil Karen , Stern Jeffrey M , Allen Joseph R , Tuen Michael , Gray‐Gaillard Sophie L , Solis Sabrina M , Samanovic Marie I , Mulligan Mark J , Montgomery Robert A 
Published: September 2023

AbstractBackgroundUnderstanding immunogenicity and alloimmune risk following severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) vaccination in kidney transplant recipients is imperative to understanding the correlates of protection and to inform clinical guidelines.MethodsWe studied 50 kidney transplant recipients following SARS‐CoV‐2 vaccination and quantified their anti‐spike protein antibody, donor‐derived cell‐free DNA (dd‐cfDNA), gene expression profiling (GEP), and alloantibody formation.ResultsParticipants were stratified using nucleocapsid testing as either SARS‐CoV‐2‐naïve or experienced prior to vaccination. One of 34 (3%) SARS‐CoV‐2 naïve participants developed anti‐spike protein antibodies. In contrast, the odds ratio for the association of a prior history of SARS‐CoV‐2 infection with vaccine response was 18.3 (95% confidence interval 3.2, 105.0, p < 0.01). Pre‐ and post‐vaccination levels did not change for median dd‐cfDNA (0.23% vs. 0.21% respectively, p = 0.13), GEP scores (9.85 vs. 10.4 respectively, p = 0.45), calculated panel reactive antibody, de‐novo donor specific antibody status, or estimated glomerular filtration rate.ConclusionsSARS‐CoV‐2 vaccines do not appear to trigger alloimmunity in kidney transplant recipients. The degree of vaccine immunogenicity was associated most strongly with a prior history of SARS‐CoV‐2 infection.
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A Multivariate Method for Dynamic System Analysis: Multivariate Detrended Fluctuation Analysis Using Generalized Variance
Authors: Wallot Sebastian , Irmer Julien Patrick , Tschense Monika , Kuznetsov Nikita , Højlund Andreas , Dietz Martin 
Published: September 2023

AbstractFractal fluctuations are a core concept for inquiries into human behavior and cognition from a dynamic systems perspective. Here, we present a generalized variance method for multivariate detrended fluctuation analysis (mvDFA). The advantage of this extension is that it can be applied to multivariate time series and considers intercorrelation between these time series when estimating fractal properties. First, we briefly describe how fractal fluctuations have advanced a dynamic system understanding of cognition. Then, we describe mvDFA in detail and highlight some of the advantages of the approach for simulated data. Furthermore, we show how mvDFA can be used to investigate empirical multivariate data using electroencephalographic recordings during a time‐estimation task. We discuss this methodological development within the framework of interaction‐dominant dynamics. Moreover, we outline how the availability of multivariate analyses can inform theoretical developments in the area of dynamic systems in human behavior.
Biogeographic influences on the evolution and historical dispersal of the Australo‐Pacific Dacini fruit flies (Tephritidae: Dacinae)
Authors: Starkie Melissa L. , Cameron Stephen L. , Krosch Matt N. , Sweet Andrew D. , Clarke Anthony R. 
Published: September 2023

AbstractFruit flies (Tephritidae: Dacini) are a frugivorous insect group that exhibit high endemic diversity in the rainforests of Australia and the western Pacific. In this region, biogeography has been influenced by tectonic plate movements and cycles of isolation and re‐connection of landmasses and rainforest habitats during glacial periods. However, how such factors have influenced the speciation and historical dispersal of the regional Dacini is largely unknown. To address this, we use a dated phylogeny to reconstruct the biogeographical history of the tribe. We found the Dacini radiated eastward into the Pacific islands largely from sources in New Guinea. We also found evidence for historical dispersal from both Australia and New Guinea into New Caledonia, a pathway unique to this island compared with neighbouring islands. There was also evidence for multiple, bidirectional dispersal events between Papua New Guinea and Australia, likely facilitated by the cyclically exposed Torres Strait land bridge. Cape York in far northern Australia was likely the only entry point for species dispersing into Australia; there was no evidence for entry of flies into Australia directly from West Papua or Wallacea. Several lineages radiated after entering Australia, such as members of the Bactrocera dorsalis species group. Within Australia, speciation was not associated with the biogeographic barriers known to have impacted other rainforest fauna in eastern Australia. Overall, we demonstrate that isolation between islands and large landmasses is important in the evolution of the Australo‐Pacific Dacini, but the reason for their extensive radiation within Australia and Papua New Guinea remains unclear.
A Preliminary Report on Students’ Reflections about Their Learning in an Active Learning Classroom
Authors: Liang Su , Vega Tina 
Published: September 2023

In the past decades, College Algebra has become a big hurdle for students to graduate or further pursue STEM or related careers. For most of the student population, College Algebra is a terminal course and only a small portion of students take it for further mathematics courses. The traditional content of College Algebra does not serve either group of students well (Mathematical Association of America, 2004; Mathematical Association of America & National Council of Teachers of Mathematics, 2012). In recent years, at a large Hispanic-serving university, the course design for liberal arts students has been changed. An active-learning curriculum has been implemented, namely Quantitative Reasoning. This curriculum engages students with opportunities to learn math concepts from relevant everyday sources and even their own personally collected data. Students build their own understanding of mathematics by relevant data-based situations experienced through preview activities designed to prepare students for class, collaboration in class discussion and discovery through relevant problem situations, and practice activities extending learning after each lesson. The purpose of this study was to investigate student perceptions of their learning outcomes from an active-learning structured course. That is, what impact does a course design with pre-assignment tasks, authentic problem solving through collaboration in class, and practice assignments after lessons have on diverse student populations in a quantitative reasoning course?
A functor for constructing R$R$‐matrices in the category O$\mathcal {O}$ of Borel quantum loop algebras
Authors: Pinet Théo 
Published: September 2023

AbstractWe tackle the problem of constructing ‐matrices for the category associated to the Borel subalgebra of an arbitrary untwisted quantum loop algebra . For this, we define an invertible exact functor from the category linked to to the one linked to . This functor is compatible with tensor products, preserves irreducibility, and interchanges the subcategories and of Hernandez and Leclerc (Algebra Number Theory 10 (2016) 2015–2052). We construct ‐matrices for by applying on the braidings already found for by Hernandez (Represent. Theory 26 (2022) 179–210). We also use the factorization of the latter intertwiners in terms of stable maps to deduce an analogous factorization for our new braidings. We finally obtain as byproducts new relations for the Grothendieck ring as well as a functorial interpretation of a remarkable ring isomorphism of Hernandez–Leclerc.
Parametric Reduced Order Model of a Gas Bearings Supported Rotor
Authors: Goutaudier Dimitri , Schiffmann Jüurg , Nobile Fabio 
Published: September 2023

Abstract
Gas bearings use pressurized gas as a lubricant to support and guide rotating machinery. These bearings have a number of advantages over traditional lubricated bearings, including higher efficiency in a variety of applications and reduced maintenance requirements. However, they are more complex to operate and exhibit nonlinear behaviors. This paper presents a parametric hyper reduced order model (h-ROM) of a gas bearings supported rotor enabling to speed up the computations up to a factor 100 while preserving satisfactory accuracy. A Galerkin projection setting is employed to reduce the dimension of the governing equations and the nonlinear terms are efficiently tackled with a sparse sampling technique. The performances of the h-ROM are compared to a high fidelity model both in terms of accuracy and computation time, demonstrating the potential for future anomaly detection applications.
Innovative Air Bypass System for Low-Emission Multi-Can Combustors
Authors: Ćosić Bernhard , Wassmer Dominik , Reiß Frank , Kluss David , Pähr Judith , Reumschüssel Johann Moritz , Beuth Jan Paul , Szeponik Martin , Reichel Thoralf , Paschereit Christian Oliver 
Published: September 2023

Abstract
Gas turbines that are used as compressor drives are often operated in the part load regime because compressor stations are usually designed for operation with full power at extreme weather conditions. Consequently, these gas turbines must comply with strict emission regulations at unfavorably low turbine inlet temperatures. To extend the low-emission operation range of the premixed combustion systems, many gas turbines bypass a part of the compressed air upstream of the combustor and either blow it off into the exhaust stack or reinject it into the secondary combustion zone. This study presents a new approach that overcomes shortcomings by injecting the compressed air in the burner head in the vicinity of the primary combustion zone. This is particularly attractive for multi-can combustors. Atmospheric combustion tests are conducted for two different air injection designs. The first design features lower air injection velocity and the second features higher injection velocities. Both injection strategies are tested with the industrial MGT gas turbine can combustor. The full size burner is tested at atmospheric conditions in a burner test rig with a quartz flame tube and natural gas as fuel. The performance of the air bypass system is assessed by means of CO and NOx emission measurements for different air bypass ratios. Additionally, OH* chemiluminescence camera pictures are presented and compared to numerical calculations. It is found that the air injection in the annular vicinity of the swirl flame does not cause increased CO emissions by quenching or other effects.
Failure Analysis of Urban Rail Transit Networks Incorporating Ridership Patterns
Authors: Saadat Yalda , Ayyub Bilal M. , Zhang Yanjie , Zhang Dongming , Huang Hongwei 
Published: September 2023

Abstract
In any nonlinear system as complex as an urban rail transit network or metrorail network, some incidence of perturbations of its state is inevitable. These perturbations, such as natural hazards, can highly affect the networks' resilience. Increasing the ability of metrorail networks to withstand such perturbations requires robustness and vulnerability assessments as key attributes of resilience and necessary steps toward developing reliable networks. Most models developed for this purpose associate a network's failures to binary representations of the failure of its components without incorporating weight factors. Since ridership is a primary factor to define the metrorail network performance, this paper proposes a general ridership pattern, considers different failure cases, and uses a novel methodology to quantitatively measure the weighted-network resilience attributes incorporating ridership throughout the Washington, DC Metrorail as a case study. The proposed methodology has clear relationships to adjacency and link-weight matrices and defines a new expression for the weighted global network efficiency based on the sum of weights on each geodesic path. Results show that the most vulnerable stations and links hold critical positions in the network topological structure and/or bear larger amounts of ridership. For the case study, the most vulnerable components include transfer stations located in the city center as well as stations and links on the northwest section of the Red Line. The methodology presented herein provides insights for enhancing critical components during the planning and operation of a metrorail by mitigating the risks associated with failure events.
Assessment of Bulk Oxygen Capacity and Transient Redox Behavior of Foamed Lanthanum Strontium Manganese Perovskites
Authors: McCord Dylan C. , Gager Elizabeth J. , Lee Kangjae , McDaniel Anthony H. , Nino Juan C. , Scheffe Jonathan R. 
Published: September 2023

Abstract
Synthesis of solar thermochemical hydrogen (STCH) production redox materials with engineered structures, for example, replica foams, can enable efficient heat and mass transport and are critical for scaled-up systems. Prior work has motivated the use of lanthanum strontium manganese (LSM)-type perovskites as foamed STCH materials, but the effect of their morphology on bulk and kinetic behavior has not been reported. In this work, replica and direct foamed samples of La0.65Sr0.35MnO3-δ (LSM35) were fabricated and compared to synthesized powders and dense monoliths, and similarly synthesized CeO2-δ (ceria) foams, regarding their specific reaction rates and bulk oxygen capacity/H2 yields. Changes in oxygen capacity (Δδ) and reaction rates were measured between 1200 °C and 1400 °C by using fixed ratios of steam and hydrogen during both reduction and oxidation steps, allowing for analysis under practical high conversion conditions. Results suggest bulk behavior and reaction rates of the foamed LSM materials are comparable to their powder analogues. Differences in reaction rates were observed only when replica foamed samples were subjected to rapid laser heating (emulating conditions expected in solar furnaces), which is expected but has not been demonstrated at such a small scale. Foamed samples were further subjected to 50 redox cycles at 1400 °C to evaluate their stability. Results show no statistically significant decrease in hydrogen production for any of the foamed samples, but the direct foamed samples became brittle with time. Together, these results demonstrate the viability of replica foamed LSM perovskites for integration in scaled-up STCH systems.
Modified Finite Difference Methods for Reynold Equation With Film Thickness Discontinuity
Authors: He Qiang , Hu Fengming , Huang Weifeng , Hu Yang , Cong Guohui , Zhang Yixun 
Published: September 2023

Abstract
In hydrodynamic lubrication problems, the presence of step structures on the surface can cause discontinuities in the film thickness. This article proposes two models for solving the two-dimensional Reynolds equation with film thickness discontinuity using the finite difference method (FDM). In model I, the film thickness variable is defined at the center of the mesh grids, allowing the Reynolds equation to be reformulated in a weak form that eliminates the singularity of film thickness discontinuity and satisfies the flow continuity condition at the film thickness discontinuity region. By considering the step boundary on the surface as the interface, model II is constructed based on the immersed interface method, turning the hydrodynamic lubrication problem into a classical interface problem. The jump conditions across the interface are derived in accordance with the continuous flow requirement. A phase-field function is adopted to describe the interface on the uniform rectangular mesh grids. Numerical experiments are conducted to assess the accuracy and capabilities of the two proposed models for analyzing a step-dimple-textured sealing. The results demonstrate that both modified FDM models can effectively address the thickness discontinuity issue. Model II achieves second-order accuracy for the pressure distribution when dealing with curved interfaces based on Cartesian grids, whereas model I demonstrates first-order accuracy. Both the proposed models exhibit superior accuracy compared to the traditional second-order central FDM when dealing with curved interfaces. Moreover, the performance of model II is further assessed by simulating lubrication problems with complex groove shapes, and the results indicate its flexibility in addressing thickness discontinuity problems with complex curve interface.