bluuebunny/crossref_metadata_2025_split huggingface dataset:
Experimental study of the ballistic resistance of micro‐bead modified epoxy resin filled S‐shaped folded sandwich panels
Authors: Deng Yunfei , Liu Bing , Wang Ruiwen , Du Jing , Wang Xuang 
Published: October 2022

AbstractThe proposed folding structure is inspired by origami, which has unique mechanical properties. To investigate the ballistic properties of the optimized S‐shaped folded sandwich structure, micro‐bead modified (HGB) epoxy resin was injected into S‐shaped folded sandwich panels and high‐velocity impact tests were conducted. The experimental results demonstrated that the damage pattern of the core determines the ballistic properties of the sandwich panel. And the node position's ballistic performance is superior to that of the base position. The modified resin improves the ballistic resistance of the sandwich panel and increases the weight of the sandwich structure. Moreover, the effect of the back‐filled modified resin on the ballistic properties of the sandwich panel can counteract the negative effect of increased weight. While the front‐filled configuration may compromise the weight‐related ballistic performance index of the sandwich structure.
Contrasts among cationic phytochemical landscapes in the southern United States
Authors: Santiago‐Rosario Luis Y. , Harms Kyle E. , Craven Dylan 
Published: October 2022

AbstractUnderstanding the phytochemical landscapes of essential and nonessential chemical elements to plants provides an opportunity to better link biogeochemical cycles to trophic ecology. We investigated the formation and regulation of the cationic phytochemical landscapes of four key elements for biota: Ca, Mg, K, and Na. We collected aboveground tissues of plants in Atriplex, Helianthus, and Opuntia and adjacent soils from 51, 131, and 83 sites, respectively, across the southern United States. We determined the spatial variability of these cations in plants and soils. Also, we quantified the homeostasis coefficient for each cation and genus combination, by using mixed‐effect models, with spatially correlated random effects. Additionally, using random forest models, we modeled the influence of bioclimatic, soil, and spatial variables on plant cationic concentrations. Sodium variability and spatial autocorrelation were considerably greater than for Ca, Mg, or K. Calcium, Mg, and K exhibited strongly homeostatic patterns, in striking contrast to non‐homeostatic Na. Even so, climatic and soil variables explained a large proportion of plants' cationic concentrations. Essential elements (Ca, Mg, and K) appeared to be homeostatically regulated, which contrasted sharply with Na, a nonessential element for most plants. In addition, we provide evidence for the No‐Escape‐from‐Sodium hypothesis in real‐world ecosystems, indicating that plant Na concentrations tend to increase as substrate Na levels increase.
Comparison of the Brief Interview for Mental Status (BIMS) and Montreal Cognitive Assessment (MoCA) for identifying cognitive impairments and predicting rehabilitation outcomes in an inpatient rehabilitation facility
Authors: Harmon Erin Y. , Gillen Robert W. 
Published: October 2022

AbstractBackgroundThe Brief Interview for Mental Status (BIMS) is the Centers for Medicare and Medicaid Services' primary cognitive assessment for multiple health care settings. However, research suggests that the BIMS has low sensitivity in detecting mild cognitive impairment in community samples and nursing home residents.ObjectiveTo determine the sensitivity of the BIMS in identifying patients with mild or moderate cognitive impairments in an inpatient rehabilitation setting and the relationship of BIMS and Montreal Cognitive Assessment (MoCA) scores with rehabilitation outcomes.DesignRetrospective cohort.SettingInpatient rehabilitation facility.PatientsA total of 2252 patients admitted for orthopedic or general rehabilitation.MethodsThe sensitivity and specificity of the BIMS for identification of cognitive impairments were determined using validated cutoff scores on the MoCA as criterion. Multivariable ordinal regression was employed to determine if MoCA and BIMS scores were independent predictors of rehabilitation outcomes.Main Outcome MeasurementsFunctional independence at discharge (GG scores), rehabilitation efficiency (GG change per day), length of stay (LOS), and discharge destination.ResultsThe BIMS had low sensitivity in identifying moderate (0.384) or mild (0.257) cognitive impairment. Patients classified as having moderate cognitive impairment on the MoCA had lower GG scores at discharge (odds ratio [OR] 0.37, 95% confidence interval [CI] 0.30 to 0.46) and rehabilitation efficiency (OR 0.43, CI 0.34 to 0.53) compared to individuals identified as impaired on the BIMS (GG scores: OR 0.63, CI 0.52 to 0.78; efficiency: OR 0.71, CI 0.58 to 0.86). LOS (OR 1.49, CI 1.19 to 1.85) and discharge destination (OR 0.47, CI 0.28 to 0.77) were uniquely predicted in patients identified as moderately impaired on the MoCA but not the BIMS (LOS: OR 0.99, CI 0.80 to 1.21; discharge home: OR 0.93, CI 0.62 to 1.38).ConclusionsThe BIMS had low sensitivity for detection of mild and moderate cognitive impairments. Compared to the MoCA, the BIMS was less effective at predicting rehabilitation outcomes.
Family styles and quality of life in adolescents with bronchial asthma: The important role of self‐esteem and perceived threat of the disease
Authors: Valero‐Moreno Selene , Montoya‐Castilla Inmaculada , Pérez‐Marín Marián 
Published: October 2022

AbstractObjectivesAnalyze the relationship between family styles and quality of life (QoL) in adolescents with bronchial asthma and study the influence of self‐esteem as a protective factor and threat perception as a risk factor.MethodsFamily styles, QoL, perceived threat of the disease, and self‐esteem were assessed in a total of 150 adolescents diagnosed with bronchial asthma with ages ranging from 12 to 16 years (M = 13.28;SD = 1.29), 60.7% being male. Descriptive statistics and mean comparisons were conducted according to the level of self‐esteem. Relationships between variables were also studied using Pearson's correlations, and finally, the mediating role of self‐esteem and the perceived threat of the disease was assessed using PROCESS.ResultsAdolescents shown healthy family characteristics (high scores on affect and parental mood and low scores on psychological control) and high scores on QoL. Thirty‐five percent of adolescents showed low self‐esteem and a tendency to underestimate the disease. There are existing relationships between family styles and QoL; thus, healthy family characteristics (affection, parental mood, autonomy promotion) were positively associated with QoL, while psychological control was negatively associated with QoL. Disease threat and self‐esteem mediated the relationship between family styles and adolescent QoL. Disease threat was negatively, and self‐esteem was positively associated with QoL.ConclusionsSelf‐esteem and family support are protective factors for the well‐being of adolescents with bronchial asthma; however, the high perceived threat of the disease can have negative consequences for the adolescent's health and negatively impact their QoL.
An updated meta‐analysis of hemodynamics markers of prognosis in patients with pulmonary hypertension due to left heart disease
Authors: Baratto Claudia , Caravita Sergio , Soranna Davide , Dewachter Céline , Bondue Antoine , Zambon Antonella , Badano Luigi P. , Parati Gianfranco , Vachiéry Jean‐Luc 
Published: October 2022

AbstractPulmonary hypertension (PH) is associated with a poor prognosis in left heart disease (LHD). We sought to provide an updated analysis on the association of hemodynamic variables, such as pulmonary vascular resistance (PVR), pulmonary artery compliance (PAC), and diastolic pressure gradient (DPG), with prognosis in PH‐LHD, through a systematic literature review. Sixteen articles were identified, including 9600 patients with LHD, heterogeneous in terms of age, sex, and etiology of cardiac disease. In this large population, PVR (hazard ratio [HR], 1.07; 95% confidence interval [CI]: 1.05−1.0), DPG (HR, 1.02; 95% CI: 1.01−1.02) and PAC (HR, 0.76; 95% CI: 0.69−0.84) were associated with an increased risk of adverse outcome, albeit with a less solid performance of DPG. Similar results were found when hemodynamic variables were analyzed according to the thresholds commonly applied in clinical practice, or subdividing cohorts according to the underlying LHD. Furthermore, cumulative metanalysis indicated that these results are consistently stable since 2018. Thus, PVR, DPG and PAC have an established prognostic value in PH‐LHD. These results are consistent through the years and unlikely to change with further studies.
Mechanism of the Resistivity Switching Induced by the Joule Heating in Crystalline NbO2
Authors: Olin Samuel W. , Razek S. Abdel , Piper Louis F. J. , Lee Wei‐Cheng 
Published: October 2022

AbstractRecently, the memristive electrical transport properties in NbO2 have attracted much attention for their promising application to neuromorphic computation. At the center of debate is whether the metal‐to‐insulator transition (MIT) originates from the structural distortion (Peierls) or the electron correlation (Mott). With inputs from experiments and first principles calculations, a thermodynamical model is developed rooted in the scenario of the MIT driven by a 2nd order Peierls instability. It is found that the temperature dependence of the electrical conductivity can be accurately fit by the band gap varying with temperature due to the gradual weakening of the Nb‐Nb dimers. The resistivity switching can consequently be understood by dimer‐free metallic domains induced by local Joule heating. In solving the heat equation, it is found that the steady state cannot be reached if the applied voltage exceeds a threshold, resulting in the chaotic behavior observed in the high voltage and current states. With the Ginzburg–Landau theory and the Joule heating equation, the evolution of the metallic domains under bias voltage can be simulated and directly verified by experiments.
Facile Synthesis of Copper‐5‐Aminoisophthalic Acid Metal Organic Framework as a Potential Drug Carrier for Ibuprofen
Authors: Inbasekar Chandrasekar , Akshaya Arul , Fathima Nishter Nishad 
Published: October 2022

AbstractDue to their large surface area and porous nature, metal organic frameworks hold a promising application in drug delivery. Among several combinations of metals with organic linkers, copper as a metal possesses synergistic behavior in drug delivery due to its antibacterial, antioxidant properties, and other biological functional necessities. This study uses the copper‐5‐aminoisophthalic acid metal organic framework (AIPA‐Cu (II) MOF) for drug delivery. From the experimental studies, AIPA‐Cu (II) MOF exhibited a potentially good loading capacity of Ibuprofen drug and excellent controlled release in in‐vitro drug release studies. The loading efficiency of Ibuprofen in AIPA‐Cu (II) MOF has been confirmed using BET adsorption, X‐Ray Diffraction, XPS spectroscopy, UV‐Visible Spectroscopy, and IR spectroscopy by comparing it against unloaded AIPA‐Cu (II) MOF. The uncoordinated free amino group in the 5‐aminoisophthalic acid ligand is expected to form an interaction between Ibuprofen and AIPA‐Cu (II) MOF through van der Waals force to induce better loading. Thus, the current study opens up a new avenue for the potential usage of AIPA‐Cu (II) MOF as an effective and compatible drug carrier for hydrophobic drugs like Ibuprofen.
Formal Pericyclic‐Coupled Electron Transfer: I. Stepwise Formal Diels‐Alder Cycloaddition Enabled by Addition‐Coupled Electron Transfer
Authors: Ma Yumiao , Hussein Aqeel A. 
Published: October 2022

AbstractThe formal Diels‐Alder (D−A) reaction of alkenes with 1,2‐diimine and related substrates is designed and studied by density functional theory (DFT), multi‐reference and quasi‐classical trajectory calculations in the presence of a benzoquinone‐based organic oxidant. The reaction is found to occur through an Addition‐Coupled Electron Transfer (ACET) with one electron transferred to the oxidant in one elementary step, affording a carbon‐radical, followed by an intramolecular radical addition. The overall barrier is significantly reduced as compared to the traditional concerted D−A reaction. The reaction with two new bond formation events in one elementary step coupled with electron transfer (concerted Pericyclic‐Coupled Electron Transfer, cPeriCET) was not found. This work reveals that coupling to electron transfer might be a tool to achieve cycloaddition reactions with unactivated substrates.
A Short Review Comparing Carbon‐Based Electrochemical Platforms With Other Materials For Biosensing SARS‐Cov‐2
Authors: Soni Isha , Kumar Pankaj , Jayaprakash Gururaj Kudur , Pandith Anup 
Published: October 2022

AbstractDue to the 2019 SARS‐CoV‐2 outbreak, low‐cost, fast, and user‐friendly diagnostic kits for biosensing SARS‐CoV‐2 in real samples employing multiple working electrodes are in high demand. Choosing SARS‐CoV‐2 detecting electrodes is difficult because each has advantages and limitations. Carbon‐based electrochemical sensing applications have attracted attention from the electrochemical sensing community because carbon and carbon‐based materials have been a godsend for testing utilizing an electrochemical platform. Carbon working electrode electrochemical platforms are cost‐effective and fast. Covid‐sensors use carbon‐based materials because they can be easily changed (with inorganic and organic functionalities), have quick response kinetics, and are chemically resistant. Covid‐19 sensing materials include graphene and graphite. This review explains how carbon materials have been employed in N and S protein electrochemical detection. Here, we discussed a carbon‐based technology for SARS‐CoV‐2 biosensing. We′ve compared carbon‐based electrochemical sensing to different electrodes.
Insights into the Third Phase Formation Behaviour of N,N‐Didodecyl‐N’,N’‐Dioctyl Diglycolamide in n‐Dodecane Investigated by Dynamic Light Scattering and FTIR Spectroscopy
Authors: Narayanan Parvathy , Swami Kantamani Rama , Prathibha Thonakot , Venkatesan Konda Athmaram 
Published: October 2022

AbstractN,N‐didodecyl‐N’,N’‐dioctyl diglycolamide (D3DODGA) was regarded as a promising ligand for the extraction of trivalent lanthanides and actinides from nuclear waste, owing to the absence of undesirable third phase formation during liquid‐liquid extraction. However, the reason for the absence of third phase formation in D3DODGA as compared to other diglycolamides was not known. To unravel the absence of third phase formation, the extraction behaviour of nitric acid and Nd(III) in 0.2 M D3DODGA in n‐dodecane (n‐DD) was studied and the reverse micellar aggregation behaviour of the organic phase was probed by dynamic light scattering (DLS) and FTIR spectroscopy. The results were compared with those obtained in popular ligands abbreviated as TODGA, TEHDGA and TDdDGA in n‐dodecane under similar conditions. The limiting reverse micellar aggregate size for third phase formation was determined to be 11.6 nm at the limiting nitric acid concentration of 0.54 M in organic phase. The investigations revealed that the absence of third phase in D3DODGA and TDdDGA was due to the presence of long chain dodecyl group attached to the molecule, as compared to the octyl moiety present in TODGA and TEHDGA. As a result, it was possible to load higher concentration of nitric acid or Nd(III) in D3DODGA without the problem of third phase formation. In view of this, the D3DODGA in n‐DD can be employed efficiently for the separation of trivalent actinides and lanthanides from nuclear waste.
Two New C21 Steroids from Gymnema tingens
Authors: He Jin‐Hua , Yao Yu‐Di , Liu Mei‐Yu , Liao Guang‐Feng , Yang Xin‐Zhou , Lu Ru‐Mei 
Published: October 2022

AbstractTwo new C21 steroids, named 12‐O‐acetyl‐(20S)‐O‐(N‐methyl)anthraniloyl sarcostin‐5α,6β‐hexahydroxypregnane (1) and 12‐O‐acetyl‐(20S)‐O‐(N‐methyl)anthraniloyl sarcostin 3‐O‐β‐D‐cymaropyranoside (2), together with eight known compounds (3–10) were isolated from the dried whole plants of Gymnema tingens. The structures of the new compounds were established by extensive 1D and 2D nuclear magnetic resonance (NMR) spectra with mass spectroscopy data. Compounds 1–9 were tested for glucose uptake in L6 cells, and compounds 3 and 4 showed the most potent glucose uptake activity with the enhancement by 2.98‐ and 3.36‐fold.
Arylethynyl Substituents at Plane Node of Pyrene: Synthesis, Crystal Structures, and Photophysical Properties
Authors: Liu Yiwei , Song Xinyi , Guo Hongxi , Yu Shuning , Islam Md. Monarul , Chen Qing , Feng Xing 
Published: October 2022

AbstractPyrene derivatives with substituents at 2‐ or 2,7‐positions have an exceptional electronic structure due to the nodal plane at these two positions. Herein, a series of linear‐shaped pyrene derivatives1–3were designed and synthesizedviacombining (4‐tert‐butylphenyl)ethynyl & (4‐tert‐butylphenyl) substituents at 2‐ and 7‐position by using the Pd‐catalysis coupling reaction with high yield. The molecular structures are completely confirmed by1H/13CNMR, high‐resolution mass spectrometry, X‐ray single crystal diffraction technology, etc. Indeed, compared to reported arylethynyl substituents pyrenes, the 2,7‐substituted molecules2and3exhibited a deep blue emission (CIE y<0.04) with considerable quantum yield both in solution and in the solid‐state. X‐ray crystallographic results indicated that the molecular pattern has a considerable impact on the emission behavior of the synthesized derivatives. In addition, theoretical studies of compounds1–3were also preformed to understand the relationship between molecular structure and photophysical features.
Construction of Biomimetic Tissues with Anisotropic Structures via Stepwise Algorithm‐Assisted Bioprinting
Authors: Li Cuidi , Chen Jialei , Jie Tianyang , Wu Wen , Wang Kan , Wang Jinwu , Deng Lianfu , Wang Ben , Cui Wenguo 
Published: October 2022

AbstractTissue‐specific natural anisotropic microstructures play an important role in the normal functioning of tissues, yet they remain difficult to construct by current printing techniques. Herein, a stepwise algorithm‐assisted bioprinting technology for the construction of biomimetic tissues with a customizable anisotropic microstructure by combining the Adaptive Mesh Generation algorithm and the Greedy Search algorithm is developed. Based on the mechanical topology optimization design mechanism, the Adaptive Mesh Generation algorithm can generate controllable anisotropic mesh patterns with the minimum free energy in plane models according to tissue‐specific requirements. Subsequently, the Greedy Search algorithm can program the generated pattern data into optimized printing paths, effectively avoiding structural deformations caused by the multiple stacking of materials and reducing the printing time. The developed bioprinting technique is suitable for various types of bioinks including polymers, hydrogels, and organic/inorganic complexes. After combining with a calcium phosphorus bioink, the compound algorithm‐assisted bioprinting technique successfully customizes femurs with biomimetic chemical compositions, anisotropic microstructures, and biological properties, demonstrating its effectiveness. Additionally, algorithm‐assisted bioprinting is generally suitable for most commercial extrusion bioprinters that function in the geometric code (G‐code) drive mode. Therefore, the algorithm‐assisted extrusion bioprinting technology offers an intelligent manufacturing strategy for the customization of anisotropic microstructures in biomimetic tissues.
Surface, Interface and Structure Optimization of Metal‐Organic Frameworks: Towards Efficient Resourceful Conversion of Industrial Waste Gases
Authors: He Chengpeng , Zhao Xiuwen , Huo Mengjia , Dai Wenrui , Cheng Xuejian , Yang Junhe , Miao Yingchun , Xiao Shuning 
Published: October 2022

AbstractIndustrial waste gas emissions from fossil fuel over‐exploitation have aroused great attention in modern society. Recently, metal‐organic frameworks (MOFs) have been developed in the capture and catalytic conversion of industrial exhaust gases such as SO2, H2S, NOx, CO2, CO, etc. Based on these resourceful conversion applications, in this review, we summarize the crucial role of the surface, interface, and structure optimization of MOFs for performance enhancement. The main points include (1) adsorption enhancement of target molecules by surface functional modification, (2) promotion of catalytic reaction kinetics through enhanced coupling in interfaces, and (3) adaptive matching of guest molecules by structural and pore size modulation. We expect that this review will provide valuable references and illumination for the design and development of MOF and related materials with excellent exhaust gas treatment performance.
Dimension Engineering in Noble‐Metal‐Based Electrocatalysts for Water Splitting
Authors: Yang Xin , Ouyang Yuejun , Guo Ruike , Yao Zufu 
Published: October 2022

AbstractDimension engineering plays a critical role in determining the electrocatalytic performance of catalysts towards water electrolysis since it is highly sensitive to the surface and interface properties. Bearing these considerations into mind, intensive efforts have been devoted to the rational dimension design and engineering, and many advanced nanocatalysts with multidimensions have been successfully fabricated. Aiming to provide more guidance for the fabrication of highly efficient noble‐metal‐based electrocatalysts, this review has focused on the recent progress in dimension engineering of noble‐metal‐based electrocatalysts towards water splitting, including the advanced engineering strategies, the application of noble‐metal‐based electrocatalysts with distinctive geometric structure from 0D to 1D, 2D, 3D, and multidimensions. In addition, the perspective insights and challenges of the dimension engineering in the noble‐metal‐based electrocatalysts is also systematically discussed.
Hollow Heterostructured Nanocatalysts for Boosting Electrocatalytic Water Splitting
Authors: Tian Lin , Liu Yuanyuan , He Changchun , Tang Shirong , Li Jing , Li Zhao 
Published: October 2022

AbstractThe implementation of electrochemical water splitting demands the development and application of electrocatalysts to overcome sluggish reaction kinetics of hydrogen/oxygen evolution reaction (HER/OER). Hollow nanostructures, particularly for hollow heterostructured nanomaterials can provide multiple solutions to accelerate the HER/OER kinetics owing to their advantageous merit. Herein, the recent advances of hollow heterostructured nanocatalysts and their excellent performance for water splitting are systematically summarized. Starting by illustrating the intrinsically advantageous features of hollow heterostructures, achievements in engineering hollow heterostructured electrocatalysts are also highlighted with the focus on structural design, interfacial engineering, composition regulation, and catalytic evaluation. Finally, some perspective insights and future challenges of hollow heterostructured nanocatalysts for electrocatalytic water splitting are also discussed.