bluuebunny/crossref_metadata_2025_split huggingface dataset:
Investigations on Vibrational Interpretations of Bubbles in Metal-Making Processes
Authors: Rigas Konstantinos , Willers Bernd , Eckert Sven , Glaser Björn 
Published: May 2023

AbstractVibration measurements were carried out using highly sensitive accelerometers in an experimental ladle integrated into the LIMMCAST (Liquid Metal Model for Steel Casting) facility at HZDR. The model is operated with liquid Sn–40 wt pctBi alloy at 200 °C, whose physical properties are close to those of molten steel. Three accelerometers were attached to the outer wall of the LIMMCAST vessel to record the vibrations caused by the argon bubble flow in the liquid metal at different process parameters. The results obtained at the liquid metal experiments differ from those reported for water models where the relationship between root mean square (RMS) value of the vibration amplitude and the gas flow rate follows different curve shapes. Furthermore, the results of vibration measurements in the LIMMCAST model are compared with vibration measurements in a steel plant during vacuum degassing. The comparison of the RMS data shows a fairly good agreement. This indicates that the vibrations in both the industrial process and the laboratory model are caused by the same physical mechanisms, and thus, the vibration behavior in an industrial steelmaking ladle can be reproduced quite well by suitable liquid metal models. These studies on bubble flows can help to improve the understanding of industrial stirring processes and thus contribute to a better process control.
Spatio-temporal patterns and trends of the air pollution integrating MERRA-2 and in situ air quality data over Egypt (2013–2021)
Authors: Masoud Alaa A. 
Published: May 2023

AbstractFor best-informed decision-making to improve climate change adaptation and reduce present and future air pollution health hazards, it is essential to identify major trends in spatiotemporal air quality patterns of common air contaminants. This study examined the patterns and trends of SO2, NO2, CO, O3, and particulate matter (PM) air pollutants over 91 monitoring stations in Egypt during 93 months in the August (2013)–April (2021) period. In situ data with their monthly, seasonal, and yearly spatial trends are defined and used to validate the counterpart satellite reanalysis MERRA-2 data. The Mann–Kendall test characterized the seasonal monotonic trends and their Sen’s slope, and annual change rate for both data series. Regression analysis of MERRA-2 against in situ concentrations of SO2 and PM10 revealed underestimation with RMSE values of 13.38 g m−3 and 69.46 g m−3, respectively. Local plumes with variable magnitudes characterized distinct industrial places clarified by patterns of in situ pollutants. As a result of the COVID-19 lockdown, the in situ air pollutants showed a considerable regional decline in the yearly average in 2020 compared to the years before. The in situ air pollutants showed annual trends far more significant than those seen in the MERRA-2 data. The shortcomings of the few and spatiotemporal discontinuities of the in situ contaminants are addressed by MERRA-2 air quality products. The in situ data made trends and magnitudes clear that were hidden in their MERRA-2 counterparts. The results clarified air pollution patterns, trends, and spatial variability over Egypt that are essential for climate risk management and for reducing environmental/health concerns.
Clinical characteristics and prognosis of non-APAP drug-induced acute liver failure: a large multicenter cohort study
Authors: Han Lin , Huang Ang , Chen Jinjun , Teng Guangju , Sun Ying , Chang Binxia , Liu Hong-Li , Xu Manman , Lan Xiaoqin , Liang Qingsheng , Zhao Jun , Tian Hui , Chen Songhai , Zhu Yun , Xie Huan , Dang Tong , Wang Jing , Li Ning , Wang Xiaoxia , Chen Yu , Yang Yong-Feng , Ji Dong , Zou Zhengsheng 
Published: May 2023

Abstract
Background
There is growing recognition of natural history, complications, and outcomes of patients who develop non-acetaminophen (APAP) drug-induced acute liver failure (ALF). To clarify high-risk factors and develop a nomogram model to predict transplant-free survival (TFS) in patients with non-APAP drug-induced ALF.

Methods
Patients with non-APAP drug-induced ALF from 5 participating centers were retrospectively analyzed. The primary endpoint was 21-day TFS. Total sample size was 482 patients.

Results
Regarding causative agents, the most common implicated drugs were herbal and dietary supplements (HDS) (57.0%). The hepatocellular type (R ≥ 5) was the main liver injury pattern (69.0%). International normalized ratio, hepatic encephalopathy grades, the use of vasopressor, N-acetylcysteine, or artificial liver support system were associated with TFS and incorporated to construct a nomogram model (drug-induced acute liver failure-5, DIALF-5). The AUROC of DIALF-5 for 7-day, 21-day, 60-day, and 90-day TFS in the internal cohort were 0.886, 0.915, 0.920, and 0.912, respectively. Moreover, the AUROC of DIALF-5 for 21-day TFS had the highest AUROC, which was significantly higher than 0.725 of MELD and 0.519 of KCC (p < 0.05), numerically higher than 0.905 of ALFSG-PI but without statistical difference (p > 0.05). These results were successfully validated in the external cohort (147 patients).

Conclusions
Based on easily identifiable clinical data, the novel DIALF-5 model was developed to predict transplant-free survival in non-APAP drug-induced ALF, which was superior to KCC, MELD and had a similar prediction performance to ALFSG-PI but is more convenient, which can directly calculate TFS at multiple time points.
Indigenous Green Microalgae for Wastewater Treatment: Nutrient Removal and Resource Recovery for Biofuels and Bioproducts
Authors: Umetani Ikumi , Sposób Michał , Tiron Olga 
Published: May 2023

Abstract
Microalgae biotechnology can strengthen circular economy concepts in the wastewater treatment sector. This study investigated the Norwegian microalgae strains of Tetradesmus wisconsinensis, Lobochlamys segnis, and Klebsormidium flaccidum for their efficiency in nutrient removal. Their biomass productivity and compositions were evaluated for bioenergy and bi-products development. In the laboratory batch experiment with synthetic municipal wastewater, all strains accomplished total removal of nitrogen and phosphorus. L. segnis removed all NH4+ and PO43− (initial concentration of 28 and 15 mg/L, respectively) earliest among others. T. wisconsinensis biomass was superior in total carbohydrates content (40%) and fatty acid profile that imply biorefinery potential. The fatty acid (TFA) content was the highest in L. segnis (193 ± 12 mg/g dry cells), while K. flaccidum accumulated fatty acids that consisted largely of polyunsaturated fatty acids (82% of TFA). The highest protein level was measured in K. flaccidum (53%). Observed variations in biomass components can be used for a strategic production of targeted compound in resource recovery scenarios for biofuel generation.

Graphical Abstract
Incidence and Risk Factors for Dysphagia Following Cerebellar Stroke: a Retrospective Cohort Study
Authors: Huang Li , Wang Yunlu , Sun Jikang , Zhu Lequn , Liu Jimin , Wu Yuwei , Shan Chunlei , Yan Juntao , Wan Ping 
Published: May 2023

AbstractThe cerebellum is known to play a supportive role in swallowing-related functions; however, wide discrepancies about the incidence rate of swallowing disorders following cerebellar strokes exist within the literature. This study aimed to investigate the incidence rate of dysphagia and the factors which may affect the presence of dysphagia and clinical recovery in individuals diagnosed with cerebellar stroke. A retrospective chart audit of 1651 post-stroke patients (1049 males and 602 females) admitted with a cerebellar stroke to a comprehensive tertiary hospital in China was conducted. Data on demographics, medical, along with swallowing function assessment were collected. Differences between dysphagic and non-dysphagic groups were evaluated using t-tests and Pearson’s chi-square test. Univariate logistic regression analysis was performed to establish factors associated with the presence of dysphagia. A total of 11.45% of participants were identified with dysphagia during inpatient admission. Individuals with mixed types of stroke, multiple lesions in the cerebellum, and ages older than 85 years old were more likely to develop dysphagia. Moreover, the prognosis of dysphagia following a cerebellar stroke was associated with lesions in different parts of the cerebellum. The cumulative recovery rates from the best to worse were the right hemisphere group, the cerebellum vermis or peduncle group, and both the hemisphere group and the left hemisphere group, respectively.
What determines FinTech success?—A taxonomy-based analysis of FinTech success factors
Authors: Werth Oliver , Cardona Davinia Rodríguez , Torno Albert , Breitner Michael H. , Muntermann Jan 
Published: May 2023

AbstractValue creation in the financial services sector has been fundamentally transformed by digitally born financial technology (FinTech) companies. FinTech companies synthesize information systems with financial services. Given its disruptive power, the FinTech phenomenon has received great attention in academic research, practice, and media. Still, limited systematic research provides a structure and holistic view of FinTechs’ success. Aiming to enhance understanding of the factors enabling FinTech success, we classify success factors across extant scientific literature on distinct FinTech business model archetypes. Our analysis reveals that the “cost–benefit dynamic of the innovation,” “technology adoption,” “security, privacy, and transparency,” “user trust,” “user-perceived quality,” and “industry rivalry” are crucial factors for FinTech success and can be seen as “grand challenges” for the FinTech ecosystem. In addition, we validate and discuss our findings with real-world examples from the FinTech industry and two interviews with stakeholders from the FinTech ecosystem. Our study contributes to the knowledge of FinTechs by providing a classification system of success factors for practitioners and researchers.
Compatibility promotion for standard development within shared platforms: A rising tide does not lift all boats
Authors: Lindgren Rikard , Saadatmand Fatemeh , Schultze Ulrike 
Published: May 2023

AbstractSelective promotion entails the exploitation of resources offered by individual complementors to improve a proprietary platform’s competitive position. However, as governance decisions to endorse a particular complementor are made unilaterally, such promotion is less suitable for shared platforms that are ultimately owned and managed by an ecosystem of heterogeneous, autonomous complementors. We explore compatibility promotion, which involves screening a shared stock of infrastructural resources and making a choice as to which complementor to promote in light of the capabilities the platform seeks to develop. Based on a longitudinal study of a shared platform that evolved around a new technology standard in the Swedish road haulage industry, we explicate how elevating one complementor over others unsettled the governance of the platform and denied the promoted complementors the opportunity to generate the kind of value that their elevated status implicitly promised. This made the platform better off at the expense of the promoted complementor. Our surprising insight lets us theorize why compatibility promotion in shared platforms renders outcomes opposite to those of selective promotion in proprietary platforms.
Ohmic dissipation impact on flow of Casson-Williamson fluid over a slippery surface through a porous medium
Authors: Abbas W. , Megahed Ahmed M. , Ibrahim M. A. , Said Ahmed A. M. 
Published: May 2023

AbstractThrough the investigation, in this work, we focused at the steady flow of a Casson-Williamson fluid due to an stretchable, impenetrable sheet with Ohmic dissipation. It is assumed that the impermeable stretched sheet is incorporated into a porous media and has a rough surface. The porous media through which the non-Newtonian fluid is flowing are supposed to obey Darcy’s law. Magnetic and electric fields’ impacts are considered. We investigate how the process of heat transfer is affected by viscous dissipation and varying thermal conductivity. On the basis of a little magnetic Reynolds number, the controlling basic equations are represented by a system of nonlinear ordinary differential equations. The shooting technique is used to get a numerical solution for this system, which controls both the temperature and velocity fields. Graphical representations of the impact of various parameters on the velocity and temperature profiles are shown. Regarding the significant results, we note that the local electric parameter tends to improve both the velocity and temperature fields, while the porous parameter, Casson parameter and slip velocity parameter decrease the velocity profiles.
Thermal Disposal of Post-processing Water Derived from the Hydrothermal Carbonization Process of Sewage Sludge
Authors: Czerwińska Klaudia , Śliz Maciej , Wilk Małgorzata 
Published: May 2023

AbstractHydrothermal carbonization is a suitable method for sewage sludge management due to great improvements in its dewaterability and the successful application of its solid product, hydrochar, in different sectors. However, the resulting liquid product requires special treatment due to the amount of undesirable compounds it contains. The main purpose of this work is to study the use of distillation as a method of post-processing liquid purification. In addition, the influence of vacuum depth on the properties of liquid products was investigated. A number of chemical and physical parameters were determined to confirm the validity of this treatment method: TOC, COD, total nitrogen Kjeldahl content, ammonium nitrogen content, phosphorus, magnesium, calcium, selected heavy metals content and phenol index. Distillation under atmospheric pressure caused reductions in the following parameters: COD, TOC, phenol index, heavy metals, chlorine by more than 90%: removal of 95% COD and TOC, 99.5% of PO4-P, 93% of Phenol, over 90% of heavy metals, and over 97% of free and total chlorine. In the case of distillation under -0.3 bar pressure, the following reductions were obtained: 97% of COD, 98% of TOC, 99.9% of PO4-P, 94% of Phenol, c.a. 98% of heavy metals, and more than 98% of free and total chlorine. Decreasing the pressure to − 0.5 bar did not producee any significant effects as the results were similar to distillation under atmospheric pressure. Both methods, distillation and distillation under lower pressures, can be used as an appropriate method of post-processing water utilization.
Graphical Abstract
Network structures of urban ride-pooling problems and their properties
Authors: Bujak Michal , Kucharski Rafal 
Published: May 2023

AbstractTravellers, when sharing their rides in a so-called ride-pooling system, form complex networks. Despite being the algorithmic backbone to the ride-pooling problems, the shareability graphs have not been explicitly analysed yet. Here, we formalise them, study their properties and analyse relations between topological properties and expected ride-pooling performance. We introduce and formalise two representations at the two crucial stages of pooling analysis. On the NYC dataset, we run two simulations with the link generation formulas. One is when we increase discount offered to the travellers for shared rides (our control variable) and observe the phase transition. In the second, we replicate the non-deterministic behaviour of travellers in ride-pooling. This way, we generate probabilistic, weighted networks. We observed a strong correlation between the topological properties of ride-pooling networks and the system performance. Introduced class of networks paves the road to applying the network science methods to a variety of ride-pooling problems, like virus spreading, optimal pricing or stability analysis.
Fractal approaches to scaling transformations to sustainability
Authors: O’Brien Karen , Carmona Rosario , Gram-Hanssen Irmelin , Hochachka Gail , Sygna Linda , Rosenberg Milda 
Published: May 2023

AbstractResponses to sustainability challenges are not delivering results at the scale and speed called for by science, international agreements, and concerned citizens. Yet there is a tendency to underestimate the large-scale impacts of small-scale, local, and contextualized actions, and particularly the role of individuals in scaling transformations. Here, we explore a fractal approach to scaling sustainability transformations based on “universal values.” Universal values are proposed as intrinsic characteristics that connect humans and nature in a coherent, acausal way. Drawing on the Three Spheres of Transformation framework, we consider how enacting universal values can generate fractal-like patterns of sustainability that repeat recursively across scales. Fractal approaches shift the focus from scaling through “things” (e.g., technologies, behaviors, projects) to scaling through a quality of agency based on values that apply to all. We discuss practical steps involved in fractal approaches to scaling transformations to sustainability, provide examples, and conclude with questions for future research.
SerpinB3 as hepatic marker of post-resective shear stress
Authors: Gringeri Enrico , Villano Gianmarco , Brocco Silvia , Polacco Marina , Calabrese Fiorella , Sacerdoti David , Cillo Umberto , Pontisso Patrizia 
Published: May 2023

AbstractPost-resective liver failure is a frequent complication of liver surgery and it is due to portal hyperperfusion of the remnant liver and to arterial vasoconstriction, as buffer response of the hepatic artery. In this context, splenectomy allows a reduction of portal flow and increases the survival chance in preclinical models. SerpinB3 is over-expressed in the liver in oxidative stress conditions, as a mechanism of cell defense to provide survival by apoptosis inhibition and cell proliferation. In this study, the expression of SerpinB3 was assessed as predictor of liver damage in in vivo models of major hepatic resection with or without splenectomy. Wistar male rats were divided into 4 groups: group A received 30% hepatic resection, group B > 60% resection, group C > 60% resection with splenectomy and group D sham-operated. Before and after surgery liver function tests, echo Doppler ultrasound and gene expression were assessed. Transaminase values and ammonium were significantly higher in groups that underwent major hepatic resection. Echo Doppler ultrasound showed the highest portal flow and resistance of the hepatic artery in the group with > 60% hepatectomy without splenectomy, while the association of splenectomy determined no increase in portal flow and hepatic artery resistance. Only the group of rats without splenectomy showed higher shear-stress conditions, reflected by higher levels of HO-1, Nox1 and of Serpinb3, the latter associated with an increase of IL-6. In conclusion, splenectomy controls inflammation and oxidative damage, preventing the expression of Serpinb3. Therefore, SerpinB3 can be considered as a marker of post-resective shear stress.
Should People Have a Right Not to Be Subjected to AI Profiling based on Publicly Available Data? A Comment on Ploug
Authors: Holm Sune 
Published: May 2023

AbstractSeveral studies have documented that when presented with data from social media platforms machine learning (ML) models can make accurate predictions about users, e.g., about whether they are likely to suffer health-related conditions such as depression, mental disorders, and risk of suicide. In a recent article, Ploug (Philos Technol 36:14, 2023) defends a right not to be subjected to AI profiling based on publicly available data. In this comment, I raise some questions in relation to Ploug’s argument that I think deserves further discussion.
Osteoprotegerin/Receptor Activator of Nuclear Factor-Kappa B Ligand/Receptor Activator of Nuclear Factor-Kappa B Axis in Obesity, Type 2 Diabetes Mellitus, and Nonalcoholic Fatty Liver Disease
Authors: Vachliotis Ilias D. , Polyzos Stergios A. 
Published: May 2023

Abstract

Purpose of Review

To summarize evidence on the potential involvement of the osteoprotegerin (OPG)/receptor activator of nuclear factor-kappa B (NF-κΒ) ligand (RANKL)/receptor activator of NF-κΒ (RANK) axis in the pathogenesis of metabolic diseases.

Recent Findings

The OPG-RANKL-RANK axis, which has been originally involved in bone remodeling and osteoporosis, is now recognized as a potential contributor in the pathogenesis of obesity and its associated comorbidities, i.e., type 2 diabetes mellitus and nonalcoholic fatty liver disease. Besides bone, OPG and RANKL are also produced in adipose tissue and may be involved in the inflammatory process associated with obesity. Metabolically healthy obesity has been associated with lower circulating OPG concentrations, possibly representing a counteracting mechanism, while elevated serum OPG levels may reflect an increased risk of metabolic dysfunction or cardiovascular disease. OPG and RANKL have been also proposed as potential regulators of glucose metabolism and are potentially involved in the pathogenesis of type 2 diabetes mellitus. In clinical terms, type 2 diabetes mellitus has been consistently associated with increased serum OPG concentrations. With regard to nonalcoholic fatty liver disease, experimental data suggest a potential contribution of OPG and RANKL in hepatic steatosis, inflammation, and fibrosis; however, most clinical studies showed reduction in serum concentrations of OPG and RANKL.

Summary

The emerging contribution of the OPG-RANKL-RANK axis to the pathogenesis of obesity and its associated comorbidities warrants further investigation by mechanistic studies and may have potential diagnostic and therapeutic implications.
Assessing Student Engagement in Collaborative Learning: Development and Validation of New Measure in China
Authors: Xu Bing , Stephens Jason M. , Lee Kerry 
Published: May 2023

AbstractCollaborative learning (CL) is widely used in higher education around the world because it is associated with increases in students’ knowledge and social skills. Low student engagement in CL activities has been identified as a common issue, while there is no CL-specific engagement scale to measure and understand engagement in such settings. Additionally, although western countries have been investigating student engagement since the 1950s, there have been comparatively few studies of this important construct in China. To address these imbalances, the present paper adopted a mixed methods approach to developing and validating a Chinese CL engagement scale. In the quantitative study, Chinese university students (N = 405) completed an anonymous online survey to assess their engagement in CL activities. Results from exploratory and confirmatory factor analyses supported a hierarchical (second-order) three-factor model of student engagement (behavioural, cognitive and emotional engagement), consistent with the tripartite conception of student engagement in Western countries. Participants were further divided into three unique groups based on engagement scores, and in the qualitative study, 12 participants from three groups were interviewed about CL experiences. Interviews served to further validate the quantitative results. The significance, limitations, and implications of these findings are discussed.
Yang–Mills-scalar-matter fields in the quantum Hopf fibration
Authors: Moncada Gustavo Amilcar Saldaña 
Published: May 2023

AbstractIn this paper we present solutions to the non-commutative geometrical version of the Yang–Mills-scalar-matter theory in the Hopf fibration $$S^1\hookrightarrow S^3\rightarrow S^2$$

S
1

↪

S
3

→

S
2

using the 3D-calculus.