bluuebunny/crossref_metadata_2025_split huggingface dataset:
Reciprocal cross‐correlation analysis of two‐phase seepage processes and reservoir heterogeneities in CO2 saline aquifer sequestration
Authors: Zhong Yiyan , Li Qi , Xu Liang , Wen Yiping , Li Yukun 
Published: April 2024

AbstractWhen CO2 saline aquifer storage is carried out, the heterogeneity of reservoir rock is an important factor affecting CO2 transport, and the reservoir heterogeneity in numerical simulations is mainly manifested as the heterogeneity of the parameter field. Since the parameter distributions across the reservoir are not available with the existing probes, the stochastic finite element method is combined with a two‐phase flow model to establish an unconditional random field of permeability, and computations are performed using the Monte Carlo method. The permeability, CO2 maximum migration distance (Md) and CO2 sweep area (Sa) were analyzed for mutual correlation. The permeability correlation area affecting Md and Sa was obtained, and the changes in the correlation area under the coefficient of variation (Cv) and correlation length (λx) of the permeability field in the different reservoirs were analyzed. The kriging superposition approach (KSA) was subsequently used to estimate both the Md and Sa of the target reservoir by establishing conditional random fields based on the sampling parameters in regions with different correlations, resulting in errors of 0.66% for Md and 0.96% for Sa in the high correlation region and 4.86% and 3.12% for Md and Sa in the low correlation region, which suggested that the sampling results from the high correlation region were less biased in the estimation. Under limited sampling conditions, it is recommended that samples be collected in regions with high correlations to reduce the uncertainty of CO2 transport analysis due to unknown heterogeneity. © 2024 Society of Chemical Industry and John Wiley & Sons, Ltd.
Exploring skill distribution tails through stochastic dominance
Authors: Besenhard Petra 
Published: April 2024

SummaryLocation choices of differently skilled workers are analyzed in previous work on labor mobility, which proposes a model that suggests thicker tails in the skill distributions of large cities. This paper replicates the empirical findings of this work by using quantile regression and density plots as employed in the existing study, while also suggesting an alternative testing method for thick tails in the form of an initial stochastic dominance test. The test reveals clear evidence of a thicker lower tail, but the results are less clear for the upper tail, which raises some questions on how to best handle extreme upper tails of skill distributions.
Genuinely nonabelian partial difference sets
Authors: Polhill John , Davis James A. , Smith Ken W. , Swartz Eric 
Published: March 2024

AbstractStrongly regular graphs (SRGs) provide a fertile area of exploration in algebraic combinatorics, integrating techniques in graph theory, linear algebra, group theory, finite fields, finite geometry, and number theory. Of particular interest are those SRGs with a large automorphism group. If an automorphism group acts regularly (sharply transitively) on the vertices of the graph, then we may identify the graph with a subset of the group, a partial difference set (PDS), which allows us to apply techniques from group theory to examine the graph. Much of the work over the past four decades has concentrated on abelian PDSs using the powerful techniques of character theory. However, little work has been done on nonabelian PDSs. In this paper we point out the existence of genuinely nonabelian PDSs, that is, PDSs for parameter sets where a nonabelian group is the only possible regular automorphism group. We include methods for demonstrating that abelian PDSs are not possible for a particular set of parameters or for a particular SRG. Four infinite families of genuinely nonabelian PDSs are described, two of which—one arising from triangular graphs and one arising from Krein covers of complete graphs constructed by Godsil—are new. We also include a new nonabelian PDS found by computer search and present some possible future directions of research.
Selective extraction of 1,3‐propanediol by phenylboronic acid‐based ternary extraction system
Authors: Huang Lusheng , Zhou Xu , Wu Nasha , Sun Yaqin , Xiu Zhilong 
Published: April 2024

AbstractBACKGROUNDConventional methods for the separation of 1,3‐propanediol (1,3‐PDO) are problematic in many ways. The study of a simple and efficient separation process was the key to solving the bottlenecks that have restricted the large‐scale development of 1,3‐PDO. In order to solve the difficulty of separating 1,3‐PDO from fermentation broths, a ternary selective extraction system was constructed to separate 1,3‐PDO from a simulated solution and fermentation broth.RESULTSIn this study, quantum chemistry calculation and wave function analysis showed that the reaction between phenylboronic acid and 1,3‐PDO is thermodynamically feasible, stable and covalently reversible. The ternary extraction system was composed of 1‐naphthylboric acid, dichloromethane and Aliquat 336. After optimization of the extraction conditions, a high extraction efficiency of 82.6% could be achieved for 1,3‐PDO. Meanwhile, the stripping recovery of 1,3‐PDO was over 90%, with a high purity (98.6%), from a simulated solution using 0.4 mol L−1 hydrochloric acid as stripping solution. The extraction selectivity of 1,3‐PDO to glycerol, acetic acid and butyric acid in the fermentation broth reached 12.9, 230.6 and 233.7, respectively, implying a high selective performance compared with the aldehyde‐based traditional reactive extraction.CONCLUSIONThe ternary extraction system exhibited good extraction performance, highlighting the potential for selective extraction of diol biochemicals from fermentation broths. © 2024 Society of Chemical Industry (SCI).
Virus adsorbent systems based on Amazon holocellulose and nanomaterials
Authors: de Souza Carolino Adriano , Freitas Xaiane Martins Silva , Macalia Célio Matias Airone , Soares Juliana Coatrini , Soares Andrey Coatrini , da Costa Pinto Camila , Barbosa Aguyda Rayany Cavalcante , de Araújo Bezerra Jaqueline , Campelo Pedro Henrique , da Silva Paula Marcos Marques , Lalwani Pritesh Jaychand , Inada Natalia Mayumi , Țãlu Ștefan , Malheiro Adriana , Sanches Edgar Aparecido 
Published: April 2024

AbstractThe environment preservation has been an important motivation to find alternative, functional, and biodegradable materials to replace polluting petrochemicals. The production of nonbiodegradable face masks increased the concentration of microplastics in the environment, highlighting the need for sustainable alternatives, such as the use of local by‐products to create efficient and eco‐friendly filtering materials. Furthermore, the use of smart materials can reduce the risk of contagion and virus transmission, especially in the face of possible mutations. The development of novel materials is necessary to ensure less risk of contagion and virus transmission, as well as to preserve the environment. Taking these factors into account, 16 systems were developed with different combinations of precursor materials (holocellulose, polyaniline [ES‐PANI], graphene oxide [GO], silver nanoparticles [AgNPs], and activated carbon [AC]). Adsorption tests of the spike protein showed that the systems containing GO and AC were the most efficient in the adsorption process. Similarly, plate tests conducted using the VSV‐IN strain cultured in HepG2 cells showed that the system containing all phases showed the greatest reduction in viral titer method. In agreement, the biocompatibility tests showed that the compounds extracted from the systems showed low cytotoxicity or no significant cytotoxic effect in human fibroblasts. As a result, the adsorption tests of the spike protein, viral titration, and biocompatibility tests showed that systems labeled as I and J were the most efficient. In this context, the present research has significantly contributed to the technological development of antiviral systems, with improved properties and increased adsorption efficiency, reducing the viral titer and contributing efficiently to public health. In this way, these alternative materials could be employed in sensors and devices for filtering and sanitization, thus assisting in mitigating the transmission of viruses and bacteria.Research Highlights
Sixteen virus adsorbent systems were developed with different combinations of precursor materials (holocellulose, polyaniline (ES‐PANI), graphene oxide (GO), silver nanoparticles (AgNPs), and activated carbon (AC)).
The system that included all of the nanocomposites holocellulose, PANI, GO, AgNPs, and AC showed the greatest reduction in viral titration.
The biocompatibility tests revealed that all systems caused only mild or moderate cytotoxicity toward human fibroblasts.
Synthesis and anticancer activity of cinnoline sulphonamides and 4‐heteroyclic derivatives: Cross‐coupling approach
Authors: Yerrabelly Jayaprakash Rao , Bommagani Mohan Babu , Yerrabelly Hemasri , Mullaguri Sai Charitha , Kancha Rama Krishna 
Published: March 2024

AbstractA series of novel cinnoline sulphonamide derivatives and 4‐substuted cinnoline derivatives (13a‐h, 16a‐h and 17–31 total 33 analogues) were designed based on scaffold hopping techniques and evaluated for their antileukemic activity on wild type K562 as well as imatinib resistant cell lines (K562‐IR1 and K562‐IR2). Out of 33 analogues, five compounds (19, 22, 23, 28, and 31) exhibited potent antileukemic activity. An easy and efficient approach to synthesize numerous cinnoline derivatives by the various cross‐coupling reactions of 4‐chlorocinnoline has been developed and also demonstrated that metal‐free cross couplings give high product yield compared with metal catalyzed cross couplings.
Clinical guideline highlight for the hospitalist: Childhood eosinophilic gastrointestinal disorders beyond eosinophilic esophagitis
Authors: Eckenrode Madeline 
Published: April 2024

GUIDELINE TITLE: Joint ESPGHAN/NASPGHAN Guidelines on Childhood Eosinophilic Gastrointestinal Disorders Beyond Eosinophilic EsophagitisRELEASE DATE: July 4, 2023 (e‐publication ahead of print)PRIOR VERSION(S): NoneDEVELOPER: European Society for Paediatric Gastroenterology, Hepatology and Nutrition (ESPGHAN) and the North American Society for Pediatrics Gastroenterology, Hepatology and Nutrition (NASPGHAN)FUNDING SOURCE: ESPGHAN and NASPGHANTARGET POPULATION: Children with eosinophilic gastrointestinal disorders beyond eosinophilic esophagitis
Geometric morphometrics casts light on phylogenetic relevance of cephalopod beak morphological
Authors: Wang Chao , Chen Xinjun , Fang Zhou 
Published: March 2024

AbstractThe feeding organ of cephalopod species, the beak, can be used to reveal important ecological information. In this study, geometric morphometric approaches were employed to investigate the phylogenetic relevance and classification effect of beak lateral profile shape. The two‐dimensional beak morphologies of 1164 pairs of 24 species from 13 genera and five families were constructed, and their evolutionary relationships and taxonomic status were confirmed using geometric morphometrics and molecular biology approaches. We also assessed the phylogenetic signals of beak shape. The analysis results show shape variation in the beak mainly in the rostrum, hood, and lateral wall. The overall shape parameters (all PCs) of the upper and lower beak are more useful for species identification. The shapes of the upper and lower beak show a strong phylogenetic signal, and the phenogram based on the beak shape basically reflected the families’ taxonomic positions. We also hypothesized that the shape variation in the beaks of cephalopods may be ascribed to genetic and environmental differences. In summary, beaks are a reliable material for the classification of cephalopod species. Geometric morphometric approaches are a powerful tool to reveal the identification, phylogenetic relevance and phenotypic diversity of beak shape in cephalopods.
A neurocognitive framework of attention and creativity: Maximizing usefulness and novelty via directed and undirected pathways
Authors: Yeo Gillian B. , Celestine Nicole A. , Parker Sharon K. , To March L. , Hirst Giles 
Published: April 2024

SummaryComing up with creative ideas is not easy. In this conceptual article, we integrate organizational behavior, cognitive psychology, and neuroscience literatures to propose that different forms of attention may be a key to maximizing creative usefulness and novelty. Specifically, we develop a neurocognitive framework of attentional control to propose differential pathways from creative goal‐directed attention (a narrow and selective focus) to deliberate information processing, and from undirected attention (a wide and unconstrained focus) to spontaneous information processing. These propositions have implications for creative usefulness and novelty, respectively—namely, that creative goal‐directed attention should facilitate the usefulness of creative outputs to a greater extent than their novelty, whereas undirected attention should promote the novelty of creative outputs to a greater extent than their usefulness. Our framework further suggests that time spent experiencing creative goal‐directed attention followed by undirected attention is the optimal sequence for maximizing both the usefulness and novelty of creative outputs. In combination, our framework advances theoretical understanding of attentional pathways to creative outcomes and offers practical implications for maximizing creative potential at work.
Divergent changes of carbon and nitrogen in the density fractions of soil organic matter after revegetation in the Tengger Desert, north China
Authors: Li Xiaojun , Yang Haotian , Yang Rong 
Published: April 2024

AbstractRevegetation is an effective measure to enhance soil organic carbon (OC) and nitrogen (N) storage in drylands, but the underlying processes remain poorly understood. Based on density fractionation, the free light fraction (fLF), the occluded light fraction (oLF), and a heavy fraction (HF) were extracted from a chronosequence of revegetated sites aged 10, 22, 34, 48, and 65 years. A mobile sand dune (MSD) was used as the reference site (aged 0 years). The OC and N contents of different fractions and the bulk soils were determined to evaluate the impacts of revegetation and clarify post‐revegetation stabilization mechanisms for the OC and N. The results showed that the dry mass of fLF and oLF in established shrublands were 17.16–31.30 and 17.68–44.87 times greater than those in the MSD, respectively, while the amount of HF decreased by 1.09%–2.51% in 65 years. The contents and stocks of OC and N and C:N ratio in each fraction significantly increased over time but decreased with soil depth, and these three variables decreased sequentially from fLF to oLF to HF. The OC and N contents and their ratios in each fraction were positively and linearly correlated with their corresponding values in the bulk soil. The OC and N percentages contained in the fLF and oLF increased significantly, but those in the HF decreased with increasing site age. Despite this, more than 55.08% of OC and 80.59% of N were remained in the HF across all the sites, indicating that the enhancement of OC and N stocks in SOM following revegetation were mainly derived from an increase in OC and N in protected fractions. Biological and physicochemical factors including microbial biomass C and N, the availability of N, P, and K, bulk density, and clay and silt contents, were the key factors regulating the OC and N dynamics in the density fractions. The initial OC and N accumulation after revegetation occurs mainly in the HF, while vegetation development shifts the OC and N from stable to labile pools. The OC and N accumulation in revegetated soils is attributed to the changes in both the LF and HF whereas OC and N in the light fraction become increasingly important over time. Stabilization by forming aggregates and mineral associations may dominate the long‐term OC and N sequestration in restored ecosystems.
Structural Characterization of 6‐Halo‐6‐Deoxycelluloses by Direct‐Dissolution Solution‐State NMR Spectroscopy
Authors: Dryś Magdalena , Koso Tetyana V. , Kilpeläinen Petri O. , Rinne‐Garmston Katja T. , Todorov Aleksandar R. , Wiedmer Susanne K. , Iashin Vladimir , King Alistair W. T. 
Published: April 2024

AbstractRegioselective modifications of cellulose using activated cellulose derivatives such as 6‐halo‐6‐deoxycelluloses provide a convenient approach for developing sustainable products with properties tailored to specific applications. However, maintaining precise regiochemical control of substituent distribution in 6‐halo‐6‐deoxycelluloses is challenging due to their insolubility in most common solvents and the resulting difficulties in precise structure elucidation by modern instrumental analytical techniques. Herein, an accessible NMR‐based approach toward detailed characterization of 6‐halo‐6‐deoxycelluloses, including the determination of the degrees of substitution at carbon 6 (DS6), is presented. It is shown that the direct‐dissolution cellulose solvent, tetrabutylphosphonium acetate:DMSO‐d6, converts 6‐halo‐6‐deoxycelluloses to 6‐monoacetylcellulose, enabling in situ solution‐state NMR measurements. A range of 1D and 2D NMR experiments is used to demonstrate the quantitivity of the conversion and provide optimum dissolution conditions. In comparison with other NMR‐based derivatization protocols for elucidating the structure of 6‐halo‐6‐deoxycelluloses, the presented approach offers major advantages in terms of accuracy, speed, and simplicity of analysis, and minimal requirements for reagents or NMR instrumentation.
Effect of a Home‐Base Core Stability Exercises in Hereditary Ataxia. A Randomized Controlled Trial. A Pilot Randomized Controlled Trial
Authors: Cabanas‐Valdés Rosa , Fernández‐Lago Helena , Peláez‐Hervás Selma , Serra‐Rusiñol Laura , López‐de‐Celis Carlos , Masbernat‐Almenara Maria 
Published: April 2024

AbstractBackgroundCore stability exercises (CSE) have been shown to be effective in improving trunk function in several neurological diseases, but the evidence is scarce on Hereditary Ataxias (HA).ObjectiveTo evaluate the effectiveness of a 5‐week home‐based CSE program in terms of ataxia severity, trunk function, balance confidence, gait speed, lower limb motor function, quality of life, health status and falls rate in HA individuals at short‐ and long‐term.MethodsThis is an assessor‐blind randomized controlled clinical trial parallel group 1:1. The individuals were divided in experimental group (EG) performed standard care in addition to CSE, and control group (CG) performed standard care alone. The CSE home‐program was conducted 1‐h/day, 5‐day/week for 5‐week. The assessment was performed at baseline, endpoint (5‐week), and follow‐up (10‐week). The primary outcomes were ataxia severity assessed by the Scale for the Assessment and Rating of Ataxia and trunk function assessed by Spanish‐version of Trunk Impairment Scale 2.0. The secondary outcomes were balance confidence assessed by Activities‐specific Balance Confidence (ABC), gait speed by 4‐meter walk test (4‐MWT), the lower limb motor function by 30‐s sit‐to‐stand, quality of life by EuroQol 5‐dimension 5‐level (EQ‐5D‐5L), health‐status by EQ‐5D and falls rate.ResultsTwenty‐three HA individuals were recruited (51.8 ± 11.10 years). Statistically significant group‐time interaction was shown in ABC (F:5.539; P = 0.007), EQ‐5D‐5L Total (F:4.836; P = 0.013), EQ 5D (F:7.207; P = 0.006).ConclusionsNo statistical differences between groups for ataxia severity and trunk function were observed. However, were differences for balance confidence, gait speed, quality of life, and falls rate in HA individuals.
How to promote the digital business model innovation of high‐tech SMEs through government venture capital? An evolutionary game perspective
Authors: Yin Hang , Liu Jiaxin , Zeng Nengmin 
Published: April 2024

AbstractDigital business model innovation plays a crucial role in the growth of high‐tech small and medium‐sized enterprises (SMEs). In this research, we introduced tripartite evolutionary game models that include the government, venture capital (VC) institutions, and high‐tech SMEs, operating within the context of government venture capital. Within the scenarios of government revenue and loss compensation, we assess the evolutionary stable strategies of each stakeholder and analyze variations in the evolution results. Using numerical simulation, we investigate how factors impact players' strategic choices and the evolution of the system. The findings indicate the presence of an indirect transmission mechanism among players' strategic choices, which collaboratively stabilizes the game system. Furthermore, we investigate the policy consequences of various compensation mechanisms and find that high‐tech SMEs' strategic choices are not influenced by these compensation approaches. However, the incentive effects of different compensation on the government and VCs' investment strategies vary. Revenue compensation is more favorable for VC institutions but places a greater financial burden on the government. In contrast, loss compensation is a more efficient approach for the government. This study offers valuable insights for the management and operation of government venture capital funds, and the advancement of digital business model innovation for high‐tech SMEs.