bluuebunny/crossref_metadata_2025_split huggingface dataset:
Preparation, characterization and fire resistance evaluation of a novel ceramizable silicone rubber composite
Authors: Yu Jiangjiang , Qu Linlin , Min Yuanyuan , Hong Ling , Chen Dongliang 
Published: January 2022

AbstractIn order to improve fire resistance performances of sealant for pipe penetration, a novel ceramizable silicone rubber (CSR) composite was developed. The CSR composite was prepared by glass frits (GF), aluminum hydroxide (ATH), phosphorus‐nitrogen flame retardant (NH2C) as functional fillers to get a silicone rubber with reinforced char residues. The effects of ATH, GF, and NH2C content on the mechanical and flame retardant properties were studied by orthogonal designed experiments. The scanning electronic microscopy and X‐ray diffraction were used to characterize the microstructure and phase composition after the sintering test, and subsequently to explore the fire resistance mechanism of the CSR composite. Experimental results indicated the optimum composition of CSR (by weight percent) was 18% GF, 18% ATH, and 25% phosphorus‐nitrogen flame retardant. The surface flammability and marine A class pipe penetration fire tests were untiled to evaluate the fire resistance of the CSR with optimal proportion. The results show the optimal CSR can achieve the A‐60 grade in the pipe penetration fire test and possess superior low flame spread flammability. Its application in pipe penetration sealing would be an effective strategy to prevent the flame propagation.
The effect of different quantity promotion discounts on inaction inertia: The internal mechanisms of perceived closeness and mental accounting
Authors: Liu Hsin‐Hsien , Chou Hsuan‐Yi , Yeh Yun‐An 
Published: January 2022

AbstractInaction inertia is the phenomenon in which people are less likely to accept an opportunity after having previously missed a relatively superior one. Based on previous studies of inaction inertia, psychological distance, and quantity promotions, the current research explores how missing different quantity promotion discounts (multiple discount vs. single large discount vs. single small discount) influences inaction inertia and relevant mediators. The results of three experiments demonstrate a missed quantity promotion with a single small discount (e.g., “buy 3, get 25% off”), compared with a missed single large discount (“buy 5, get 40% off”) or a multiple discount (e.g., “buy 3, get 25% off, or buy 5, get 40% off”), inducing higher inaction inertia through enhanced perceived closeness, upward counterfactual thinking, and perceived regret. Compared with missing a multiple‐discount promotion, missing a single large‐discount promotion enhances inaction inertia. However, the effect is only mediated through the number of upward counterfactual thoughts and perceived regret. These findings indicate perceived closeness, and assignments to specific mental accounts are important internal mechanisms activating inaction inertia.
Ecocentric leadership and voluntary environmental behavior for promoting sustainability strategy: The role of psychological green climate
Authors: Biswas Shetu Ranjan , Uddin Md. Aftab , Bhattacharjee Swadip , Dey Mouri , Rana Tarek 
Published: January 2022

AbstractSustainability is not just a “buzzword” but refers to the ideal business strategy for encouraging sustainable behavior for remaining relevant and competitive. Managers of organizations are increasingly expected to duly consider and demonstrate the desired social and environmental intentions of translating leadership strategies into sustainable practices. Studies on employees' voluntary environmental behavior (VEB) are increasing in number, in that it is believed that behavior can contribute to achieving organizational sustainability strategy. However, despite the studies being published on this emerging field, leadership is a missing link regarding the psychological mechanism through which VEB can be defined and refined. Drawing on the theories of social learning and social exchange, this study seeks to establish the impact of ecocentric leadership (EL) on VEB and the mediating role of psychological green climate (PGC) in this nexus. Data were collected from wide‐ranging business organizations in Bangladesh through a self‐administered survey questionnaire. The results indicate that EL wields a significant direct influence on VEB. Moreover, EL through the mediating effect of PGC indirectly shapes VEB. The study contributes original insights to the discussions and debates on strategic leadership and climate accountability. Implications of ecocentric strategic leadership and recommendations for future research are discussed.
Endobronchial enchondroma: Unusual bronchial tumor
Authors: Ryu Kyoung Min , Myong Na‐Hye , Kim Dohhyung 
Published: January 2022

AbstractBronchial chondromas are very rare pulmonary benign tumors. Despite their rarity, clinicians should be aware of the possibility of endobronchial tumors in patients with unexplained respiratory symptoms. Treatment modalities for the complete excision of the tumor should be initiated to prevent further complications based on the individual tumor situation.
Boosting Amination of 1‐Octanol to 1‐Octylamine via Metal‐Metal Oxide Interactions in NixFe1/Al2O3 Catalysts
Authors: Wang Shiqing , Lan Xiaocheng , Liu Boyang , Ali Babar , Wang Tiefeng 
Published: January 2022

AbstractThe synthesis of 1‐octylamine, a primary platform molecule, remained a great challenge in catalysis. In this work, NixFe1/Al2O3 was used for direct amination of 1‐octanol to 1‐octylamine. Catalyst evaluation indicated that the promotion effect of Fe/Ni ratio on the catalytic amination activity followed a volcano curve while the selectivity to 1‐octylamine was positively correlated with the Fe loading. Compared with the Ni/Al2O3 catalyst, the amination activity was increased by 2.8 times by optimizing the Fe/Ni ratio to 0.33, and the selectivity to 1‐octylamine was increased from 84.0 % to 96.3 % when increasing the Fe/Ni ratio from 0 to 1. Based on catalyst characterizations, the good performance of NixFe1/Al2O3 was ascribed to the combined modification effect of the NiFe alloy and Ni−FeOx interface. The FeOx species enriched on the Ni particle surface provided sufficient Fe2+/Fe3+−O2− sites for the activation of 1‐octanol, and the cooperation between Ni sites and Lewis acid‐base pairs enhanced the amination of 1‐octanol to 1‐octylamine. This work sheds new light on the design of Ni‐based catalysts without using a noble metal for primary amine preparation.
Activation of Substituted Metallocene Catalysts Using Methylaluminoxane
Authors: Collins Scott , Linnolahti Mikko 
Published: January 2022

AbstractActivation of the metallocene complexes (n‐C4H9‐(η5‐C5H4))2ZrCl2 (BuCp2ZrCl2) and rac‐1,2‐ethylenebis(1‐η5‐C9H6)ZrCl2 (EBIZrCl2) using methylaluminoxane (MAO) was investigated by electrospray ionization mass spectrometry (ESI‐MS). Formation of dinuclear complexes at low Al : Zr ratios, which is accompanied by catalyst deactivation, occurs in the former case. In contrast, this behavior was not observed at similar Al : Zr ratios in the case of the EBIZrCl2 complex. Both active [BuCp2ZrMe2AlMe2][MAO(Me)] 3 and deactivated [(BuCp2Zr)2(μ‐CH2)μ‐Cl][MAO(Me)] 9 complexes were detected in leaching experiments using a SiO2‐MAO‐supported BuCp2ZrCl2 catalyst and excess MAO. DFT studies of the structure and UV‐Vis spectra calculated for the dinuclear cations 9 detected by ESI‐MS suggest that these species may account for long‐wavelength absorption seen in experimental spectra of complexes like BuCp2ZrCl2 upon activation with MAO.
Effect of Flow Direction on a Double‐Duty Microreactor for Coproduction of Aniline and Hydrogen
Authors: Khazayialiabad Amirhossein , Iranshahi Davood 
Published: January 2022

AbstractA new thermally coupled microreactor, which simultaneously produces hydrogen and aniline, is simulated. It is suggested that the nitrobenzene hydrogenation process, the heat source, occurs in the tube section, thereby providing the requisite energy for the reactor system. Conversely, the shell section contains the steam reforming of glycerol coolant for the exothermic reaction. The results are evaluated in the two flow directions, namely, cocurrent and countercurrent. The furnace and cooling system, vital for the conventional steam reforming and aniline production processes, are eliminated, respectively, having accurately implemented the sensitivity analysis. Optimization of the most effective parameters is performed via genetic algorithm.
A method to prepare reference colors for chromatic adaptation experiments
Authors: Cai Shengyan , Sun Yan , Sun Ruixia , Chen Xiaoying , Shi Xinyue 
Published: January 2022

AbstractThe preparation of the reference colors is the hardest and the most time‐consuming part of chromatic adaptation experiments. In this paper, a new method is proposed to prepare high‐quality reference color arrays for chromatic adaptation experiments. The reference color arrays are defined in the a*b* plane of CIELAB color space. The initial arrays are calculated by the CAT02 and the desired color differences. Then the arrays are output and two visual experiments are organized, the chromatic adaptation experiment and the color difference estimating experiment. The former is to check if the color gamut of the reference colors is fit for the experiment. The latter is to check the uniformity of the color differences of the arrays. According to the fitting curves from the color differences estimating experiment, the reference color arrays can be optimized to be more uniform in the color differences. The method is proved effective and suitable for different media.
Dynamic Transformation of DNA Nanostructures inside Living Cells
Authors: Ding Xiaohui , Lv Zhaoyue , Xu Nuo , Li Feng , Yang Dayong 
Published: January 2022

AbstractDNA nanostructures, that show sequence programmable responsiveness to intracellular signals, have been explored as potential candidates of artificial dynamic functional structures in living cells. Recently, we developed a series of intracellular signals responding DNA nanostructures in living cells to perform a special mission. In this review, the developed DNA nanostructures and their dynamic transformation properties are summarized and discussed. The DNA nanostructures are generally categorized into DNA‐inorganic nanomaterials and DNA‐organic nanomaterials depending on the composition. At the end of this review, the challenges and prospects on instructing dynamic DNA nanostructures in living cells are discussed. We believe that this review will contribute to the further development of stimuli‐responsive nanomaterials, which is of great potential in biomedical applications.
Shock physics in warm dense matter: A quantum hydrodynamics perspective
Authors: Graziani F. , Moldabekov Z. , Olson B. , Bonitz M. 
Published: January 2022

AbstractWarm dense matter (WDM), an exotic, highly compressed state of matter between solid and plasma phases, is of high current interest, in particular for astrophysics and inertial confinement fusion. For the latter, in particular the propagation of compression shocks is crucial. The main unknown in the shock propagation in WDM is the behaviour of the electrons since they are governed by correlations, quantum and spin effects that need to be accounted for simultaneously. Here we describe the shock dynamics of the warm dense electron gas using a quantum hydrodynamic model. From the numerical hydrodynamic simulations, we observe that the quantum Bohm pressure induces shear force that weakens the formation and strength of the shock. In addition, the Bohm pressure induces an electron density response that takes the form of oscillations. This is confirmed by the theoretical analysis of the early stage of the shock formation. Our theoretical and numerical analyses allow us to identify characteristic dimensionless shock propagation parameters at which the effect of the Bohm force is important.
Ground nesting by arboreal American robins (Turdus migratorius)
Authors: Winnicki Sarah K. , Hauber Mark E. , Benson Thomas J. , Abolins‐Abols Mikus 
Published: January 2022

AbstractAnimals with dependent and vulnerable young need to decide where to raise their offspring to minimize ill effects of weather, competition, parasitism, and predation. These decisions have critical fitness consequences through impacting the survival of both adults and progeny. Birds routinely place their nest in specific sites, allowing species to be broadly classified based on nest location (e.g., ground‐ or tree‐nesting). However, from 2018 to 2020, we observed 24 American robin (Turdus migratorius) nests placed not on their species‐typical arboreal substrates or human‐made structures but on the ground at a predator‐rich commercial tree‐farm in Illinois, USA. This behavior does not appear to be in response to competition and did not affect nest daily survival rate but was restricted to the early half of the breeding season. We hypothesize that ground nesting may be an adaptive response to avoid exposure and colder temperatures at sites above the ground early in the breeding season or a nonadaptive consequence of latent robin nest‐placement flexibility.
Gelatin‐starch composite coating containing cucumber peel extract and cumin essential oil: Shelf life improvement of a cheese model
Authors: Esparvarini Zahra , Bazargani‐Gilani Behnaz , Pajohi‐Alamoti Mohammadreza , Nourian Alireza 
Published: January 2022

AbstractIn this study, the effects of gelatin‐starch (GS) composite coating containing cucumber peel extract (CPE) and cumin essential oil (CEO) were evaluated on the shelf life enhancement of ultrafiltered (UF) cheese during 56 days of storage under refrigerated conditions. The obtained hydroethanolic CPE by the microwave method showed the best results in terms of the total phenolic content, reducing power, 2,2′‐diphenyl‐1‐picrylhydrazyl (DPPH) activity, and 2,2‐azino‐bis‐3‐ethylbenzothiazoline‐6‐sulfonic acid (ABTS) radical scavenging activity compared to the immersion and ultrasound methods. The studied treatments were as follows: Control (C), GS, CPE, CEO, GS‐CPE, GS‐CEO, and GS‐CPE‐CEO. Scanning electron microscopic surface morphology of treated cheese samples showed the formation of a firm, integrated, flawless, and homogenous layer on the cheese slices of the GS‐CPE‐CEO treatment. All treatments significantly (p ≤ .05) decreased the total viable count, psychotropic bacteria, and yeast–mold population compared to the control group. Adding CEO and/or CPE to GS significantly (p ≤ .05) controlled undesirable changes in physical characteristics, such as weight, color, and hardness of the cheese slices. Throughout storage time, the coated cheese slices showed more stable chemical features in comparison to the uncoated cheese samples in terms of moisture, lipid oxidation, pH, and titratable acidity (TA). Sensory evaluation of the preparations showed that the GS coating containing CPE and CEO significantly (p ≤ .05) had pleasant effects on the sensory features (taste, odor, texture, and overall acceptability) of the cheese samples during storage time. It was concluded that composite coating of GS containing CPE and CEO could improve the microbial, physical, chemical, and sensory features of ultrafiltration (UF) cheese during refrigerated storage.
Daily intake of up to two eggs for 11 weeks does not affect the cholesterol balance of Chinese young adults
Authors: Ma Zhili , Wu Wei , Zhang Dexin , Wu Ping , Guo Yuanhua , Li Deyuan , Yang Fang 
Published: January 2022

AbstractApproximately 90% of the cholesterol content of the body is derived from de novo synthesis and the enterohepatic circulation. As numerous studies have shown previously, one egg per day intake has little impact of cholesterol balance in human body. Therefore, this study assumed that intake of up two eggs a day has little effect on biomarkers of cardiovascular diseases (CVDs) risk in Chinese young adults. With the increase in egg intake, total cholesterol, low‐density lipoprotein cholesterol (LDL‐C), high‐density lipoprotein cholesterol (HDL‐C), and choline all increased among all the groups as the study progressed from autumn to winter (p < .05). However, there were no differences in the plasma triglycerides, LDL‐C/HDL‐C ratio, glucose, liver enzymes, C‐reactive protein, and urinary microalbumin during the diet periods. Subjects who ate eggs at breakfast felt less hungry and more satisfied, which were relative with decreased fasting plasma ghrelin level (p < .05). Furthermore, egg‐derived cholesterol appeared to upregulate the mRNA levels of low‐density lipoprotein receptor and lecithin–cholesterol acyltransferase, and downregulate cholesteryl ester transfer protein and flavin‐containing monooxygenase 3 mRNA levels in isolated peripheral blood mononuclear cells. These results demonstrate that intake of up to two eggs a day had little effect on biomarkers of CVDs in young, healthy Chinese college students and provided useful evidence for the dietary guidelines regarding egg consumption.
Altered processing of communication signals in the subcortical auditory sensory pathway in autism
Authors: Schelinski Stefanie , Tabas Alejandro , von Kriegstein Katharina 
Published: January 2022

AbstractAutism spectrum disorder (ASD) is characterised by social communication difficulties. These difficulties have been mainly explained by cognitive, motivational, and emotional alterations in ASD. The communication difficulties could, however, also be associated with altered sensory processing of communication signals. Here, we assessed the functional integrity of auditory sensory pathway nuclei in ASD in three independent functional magnetic resonance imaging experiments. We focused on two aspects of auditory communication that are impaired in ASD: voice identity perception, and recognising speech‐in‐noise. We found reduced processing in adults with ASD as compared to typically developed control groups (pairwise matched on sex, age, and full‐scale IQ) in the central midbrain structure of the auditory pathway (inferior colliculus [IC]). The right IC responded less in the ASD as compared to the control group for voice identity, in contrast to speech recognition. The right IC also responded less in the ASD as compared to the control group when passively listening to vocal in contrast to non‐vocal sounds. Within the control group, the left and right IC responded more when recognising speech‐in‐noise as compared to when recognising speech without additional noise. In the ASD group, this was only the case in the left, but not the right IC. The results show that communication signal processing in ASD is associated with reduced subcortical sensory functioning in the midbrain. The results highlight the importance of considering sensory processing alterations in explaining communication difficulties, which are at the core of ASD.
Three‐terminal perovskite/integrated back contact silicon tandem solar cells under low light intensity conditions
Authors: Kanda Hiroyuki , Dan Mihailetchi Valentin , Gueunier‐Farret Marie‐Estelle , Kleider Jean‐Paul , Djebbour Zakaria , Alvarez Jose , Philippe Baranek , Isabella Olindo , Vogt Malte R. , Santbergen Rudi , Schulz Philip , Peter Fiala , Nazeeruddin Mohammad K. , Connolly James P. 
Published: January 2022

AbstractThe current climate and energy crisis urgently needs solar cells with efficiencies above the 29% single junction efficiency bottleneck. Silicon/perovskite tandem solar cells are a solution, which is attracting much attention. While silicon/perovskite tandem cells in 2‐terminal and 4‐terminal configurations are well documented, the three‐terminal concept is still in its infancy. It has significant advantages under low light intensities as opposed to concentrated sunlight, which is the critical factor in designing tandem solar cells for low‐cost terrestrial applications. This study presents novel studies of the sub‐cell performance of the first three‐terminal perovskite/silicon selective band offset barrier tandem solar cells fabricated in an ongoing research project. This study focuses on short circuit current and operating voltages of the sub‐cells under light intensities of one sun and below. Lifetime studies show that the perovskite bulk carrier lifetime is insensitive to illumination, while the silicon cell's lifetime decreases with decreasing light intensity. The combination of perovskite and silicon in the 3T perovskite‐silicon tandem therefore reduces the sensitivity of VOC to light intensity and maintains a relatively higher VOC down to low light intensities, whereas silicon single‐junction cells show a marked decrease. This technological advantage is proposed as a novel advantage of three‐terminal perovkite/silicon solar cells for low light intensities of one sun or less.
Household consumption and exchange rate extreme dynamics: Multiple asymmetric threshold non‐linear autoregressive distributed lag model perspective
Authors: Uche Emmanuel , Chang Bisharat Hussain , Effiom Lionel 
Published: January 2022

AbstractThis study re ‐evaluates the relative adjustments of household's consumption expenditure to extremely small and extremely large variations in exchange rate in African emerging economies (AEE). For this purpose, we used a modified version of non‐linear autoregressive distributed lag (ARDL) and multiple threshold non‐linear ARDL models that specifically captures the differential effects of extremely small and extremely large positive and negative variations of the explanatory variable(s) on the explained variable. Consequently, the empirical estimates reveal that changes in exchange rate has asymmetric effects on consumption expenditure in all the countries except in Nigeria. Furthermore, consumption expenditure in Algeria, Egypt and Morocco increases significantly at the upper quantile of exchange rate appreciation, whereas, it declines significantly at all quantiles of exchange rate depreciation, implying that consumption expenditure in these three North African countries are more sensitive to large positive shocks in exchange rate. In Kenya, Nigeria and South Africa, consumption expenditure are exchange rate inelastic as households maintain their consumption levels regardless of the direction and degree of exchange rate deviations. Overall, the diagnostics tests prove the superiority of this enhanced technique over the standard non‐linear ARDL technique. Based on the outcomes of this study, policy recommendations that could ensure optimal exchange rate alignment for the African countries, as well as other emerging economies have been proposed.
Development of an optical fiber‐based redox monitoring system for tissue metabolism
Authors: Zhang Wen Qi , Sorvina Alexandra , Morrison Janna L. , Darby Jack R. T. , Brooks Doug A. , Plush Sally E. , Afshar Vahid Shahraam 
Published: January 2022

AbstractAn optical redox ratio can potentially be used to report on the dynamics of cell and tissue metabolism and define altered metabolic conditions for different pathologies. While there are methods to measure the optical redox ratio, they are not particularly suited to real‐time in situ or in vivo analysis. Here, we have developed a fiber‐optic system to measure redox ratios in cells and tissues and two mathematical models to enable real‐time, in vivo redox measurements. The optical redox ratios in tissue explants are correlated directly with endogenous NADH/FAD fluorescence emissions. We apply the mathematical models to the two‐photon microscopy data and show consistent results. We also used our fiber‐optic system to measure redox in different tissues and show consistent results between the two models, hence demonstrating proof‐of‐principle. This innovative redox monitoring system will have practical applications for defining different metabolic disease states.