bluuebunny/crossref_metadata_2025_split huggingface dataset:
Composite Hydrogel Spheroids Based on Cellulose Nanofibrils and Nanofibrous Chiral Coordination Polymer by Green Synthesis
Authors: Engel Emile R. , Calabrese Vincenzo , Hossain Kazi M. Zakir , Edler Karen J. , Scott Janet L. 
Published: October 2020

AbstractCellulose‐based hydrogels are promising sustainable materials for a variety of applications, including tissue engineering, water treatment, and drug delivery. However, the tailoring of diverse properties by efficient green chemistry methods is an ongoing challenge. Here, composite hydrogels of consistent spheroidal structure, incorporating TEMPO‐oxidized cellulose nanofibrils and nanofibrous chiral Cu(II) aspartate coordination polymer, are presented. The hydrogels are prepared by a single‐step procedure in aqueous media at ambient temperature and pressure, adhering to the principles of green chemistry. With a view to adapting this method for a variety of alternative coordination polymers (to tailor functional properties), the following critical factors for formation of robust composite hydrogel spheroids are identified: rheological properties of the primary matrix used for spheroidal hydrogel formation and coordination polymer self‐assembly rate.
Effect of F Dopant on the Structural Stability, Redox Mechanism, and Electrochemical Performance of Li2MoO3 Cathode Materials
Authors: Teng Rui , Yu Hai‐Tao , Guo Chen‐Feng , Xie Ying , Yi Ting‐Feng 
Published: October 2020

AbstractF‐doped Li2MoO3 (LMOF) nanosheets are successfully prepared by a facile method. The X‐Ray powder diffraction, scanning electron microscopy, and transmission electron microscopy results show that the thickness of the Li2MoO3 sheets decreases gradually with increasing F doping amount, while the interlayer spacing along the z‐axis increases. The X‐ray photoelectron spectroscopy and cyclic voltammetry results indicate that F doping is helpful for suppressing the irreversible phase transformation and the formation of Li2MoO4, and the relevant redox mechanism is discussed. Moreover, density functional theory calculations demonstrate that F‐doped samples exhibit a higher structural stability, which is important for the improvement of the electrochemical performance. The initial discharge capacities are 228.97, 229.74, 232.99, 238.07, and 250.07 mAh g−1, respectively for the LMOF‐0, LMOF‐1, LMOF‐3, LMOF‐5, and LMOF‐7 samples. LMOF‐5 has the best performance, and it can deliver a specific capacity of 96.1 mAh g−1 at the 500th cycle at a charge/discharge current density of 1020 mA g−1. The experiments identify the promising role of anion doping and offer some important information for the design and optimization of Li2MoO3‐based cathode materials.
Fabrication and Characterization of Composite Membranes for the Concentration of Lithium Containing Solutions Using Forward Osmosis
Authors: Wagh Priyesh , Islam Syed Z. , Deshmane Vishwanath G. , Gangavarapu Pranathi , Poplawsky Jonathan , Yang Guang , Sacci Robert , Evans Samuel F. , Mahajan Sidharth , Paranthaman M. Parans , Moyer Bruce , Harrison Stephen , Bhave Ramesh 
Published: October 2020

AbstractIn this study, an energy and highly time efficient, cost effective, and scalable forward osmosis (FO) composite polyvinylidene fluoride (PVDF) membrane is developed to concentrate lithium chloride recovered from naturally occurring geothermal brine resources. Dense thin robust defect‐free Kynar‐PVDF membranes are fabricated on porous PVDF hollow fiber supports. Various membrane fabrication parameters such as membrane thickness, coating solution concentration, cross‐linker concentration, and curing temperature are studied to develop a defect‐free dense membrane. Advanced characterization tools such as FIB‐SEM, Raman, FTIR spectroscopy, and XRD are used to study the surface and cross‐sectional morphology, chemistry of crosslinking, crystallinity and chemical structure of the dense PVDF membrane. FO is utilized to concentrate LiCl in the solution from 36 to 175 g L−1 with an average water transfer rate of 0.450 L m−2 h−1 (LMH) at 85 °C. Furthermore, the membrane showed stable performance for more than 550 h while maintaining the purity of the concentrated lithium chloride solution of >99.99 wt%. The results suggest that the FO‐based technology is an innovative, time and energy efficient approach compared to the conventional technologies for concentration of battery grade LiCl for application in lithium ion batteries and other clean energy technologies.
Porous Aromatic Framework Nanosheets Anchored with Lewis Pairs for Efficient and Recyclable Heterogeneous Catalysis
Authors: Meng Qinghao , Huang Yihan , Deng Dan , Yang Yajie , Sha Haoyan , Zou Xiaoqin , Faller Roland , Yuan Ye , Zhu Guangshan 
Published: October 2020

AbstractLewis pairs (LPs) with outstanding performance for nonmetal‐mediated catalysis reactions have high fundamental interest and remarkable application prospects. However, their solubility characteristics lead to instability and deactivation upon recycling. Here, the layered porous aromatic framework (PAF‐6), featuring two kinds of Lewis base sites (NPiperazine and NTriazine), is exfoliated into few‐layer nanosheets to form the LP entity with the Lewis acid. After comparison with various porous networks and verification by density functional theory (DFT) calculations, the NTriazine atom in the specific spatial environment is determined to preferably coordinate with the electron‐deficient boron compound in a sterically hindered pattern. LP‐bare porous product displays high catalytic activity for the hydrogenation of both olefin and imine compounds, and demonstrates ≈100% activity after 10 successful cycles in hydrogenation reactions. Considering the natural advantage of porous organic frameworks to construct LP groups opens up novel prospects for preparing other nonmetallic heterogeneous catalysts for efficient and recyclable catalysis.
Spatiotemporal variation of soil moisture in Northern China based on climate change initiative data
Authors: Yao X. L. , Jiang Q. , Liu Y. , Li L. Y. , Wang Q. Y. , Yu J. S. 
Published: October 2020

AbstractIn view of the sparse, uneven distribution and poor data continuity of measured soil moisture sites in China and the lack of large‐scale research, the soil moisture data set of the European Space Agency (ESA) Climate Change Initiative (CCI) was applied to carry out spatial‐temporal variation analysis of soil moisture in five agricultural ecological zones in Northern China. The Pearson correlation coefficient and multiple‐component metric Kling–Gupta efficiency were used to verify the validity of remote sensing data and to analyze the temporal and spatial variation of soil moisture with the concept of temporal and spatial persistence. The ESA CCI remote sensing soil moisture data had good spatial and temporal adaptability for the whole year in the Huang‐Huai‐Hai region, in summer in Northeast China, in spring in Northwest China, in summer and autumn in the Loess Plateau, and in summer and autumn in the Inner Mongolian Plateau. The annual mean soil volume water content in Northern China from 1991 to 2016 was 0.06–0.39 m3 m−3. Spatially, soil moisture in Northern China has been gradually increasing from west to east. In this area, seasonally, soil moisture was the highest in summer, followed by autumn and then winter and spring. Northeast China, the Loess Plateau, and the Huang‐Huai‐Hai region are important grain‐producing areas in China. The soil moisture in these areas fluctuates widely with seasonal changes and shows an obvious drying trend.
Dye‐Doped Silica Nanoparticles for Enhanced ECL‐Based Immunoassay Analytical Performance
Authors: Zanut Alessandra , Palomba Francesco , Rossi Scota Matilde , Rebeccani Sara , Marcaccio Massimo , Genovese Damiano , Rampazzo Enrico , Valenti Giovanni , Paolucci Francesco , Prodi Luca 
Published: October 2020

AbstractThe combination of highly sensitive techniques such as electrochemiluminescence (ECL) with nanotechnology sparked new analytical applications, in particular for immunoassay‐based detection systems. In this context, nanomaterials, particularly dye‐doped silica nanoparticles (DDSNPs) are of high interest, since they can offer several advantages in terms of sensitivity and performance. In this work we synthesized two sets of monodispersed and biotinylated [Ru(bpy)3]2+‐doped silica nanoparticles, named bio‐Triton@RuNP and bio‐Igepal@RuNP, obtained following the reverse microemulsion method using two different types of nonionic surfactants. Controlling the synthetic procedures, we were able to obtain nanoparticles (NPs) offering highly intense signal, using tri‐n‐propylamine (TPrA) as coreactant, with bio‐Triton@RuNps being more efficient than bio‐Igepal@RuNP.
London Dispersion in Alkanen als Lösungsmittel
Authors: Strauss Marcel A. , Wegner Hermann A. 
Published: October 2020

AbstractDie Bedeutung der London‐Dispersionswechselwirkungen in Lösung ist eine anhaltende Debatte. Obwohl der Stellenwert der Dispersion für Struktur und Stabilität weithin anerkannt ist, ist der Grad ihrer Abschwächung in Lösung immer noch nicht richtig verstanden. Quantitative Abschätzungen stammen meist von Berechnungen. Experimentelle Daten liefern Anhaltspunkte für die Einbeziehung der London‐Dispersion bei der Anpassung der Flüssigphase. Dabei wurden dispersive Wechselwirkungen mit einer Azobenzolsonde untersucht. Alkylsubstituenten in meta‐Positionen des Azobenzolgerüsts wurden systematisch variiert und die Auswirkung auf die Halbwertszeiten für die thermisch induzierte Z‐ zu E‐Isomerisierung in mehreren Alkanen als Lösungsmitteln bestimmt. Die Ergebnisse zeigen, dass die intramolekulare Dispersion nur geringfügig beeinflusst wird. In Lösungsmitteln mit niedriger Oberflächenspannung erhöhen reduzierte destabilisierende Lösungsmittel‐Lösungsmittel‐Wechselwirkungen die Halbwertszeit um bis zu 20 %. Spezifische individuelle Wechselwirkungen zwischen Alkylketten am Azobenzol und denen des Lösungsmittels führen zu zusätzlichen Schwankungen der Halbwertszeiten. Diese resultieren vermutlich aus strukturellen Veränderungen des Konformeren‐ensembles.
London Dispersion in Alkane Solvents
Authors: Strauss Marcel A. , Wegner Hermann A. 
Published: October 2020

AbstractThe importance of London dispersion interactions in solution is an ongoing debate. Although the significance of dispersion for structure and stability is widely accepted, the degree of its attenuation in solution is still not properly understood. Quantitative evaluations are derived mostly from computations. Experimental data provide guidelines to include London dispersion in solution phase design. Herein, dispersive interactions were examined with an azobenzene probe. Alkyl substituents in meta positions of the azobenzene core were systematically varied and the effect on the half‐lives for the thermally induced Z to E isomerization in several alkane solvents was determined. The results show that intramolecular dispersion is only marginally influenced. In solvents with low surface tension, reduced destabilizing solvent‐solvent interactions increase the half‐life up to 20 %. Specific individual interactions between alkyl chains on the azobenzene and those of the solvent lead to additional fluctuations of the half‐lives. These presumably result from structural changes of the conformer ensemble.
Increasing the performance of asymmetric pervaporation membranes for the separation of methanol/methyl‐tert‐butyl ether mixtures by the introduction of sulfonated polyimide into the poly(amide‐imide) matrix
Authors: Sapegin Denis Andzheevich , Gubanova Galina Nikolaevna , Popova Elena Nikolaevna , Kononova Svetlana Viktorovna 
Published: October 2020

AbstractA series of novel asymmetric membranes from polymer composites of poly(amide‐imide) with various content of sulfonated polyimide (1–6 wt%) was obtained through the nonsolvent‐induced phase separation process. Selective transport properties of the obtained materials were investigated in terms of pervaporation separation of methanol/methyl‐tert‐butyl ether mixtures at different temperatures. The introduction of the sulfonated polyimide to the poly(amide‐imide) matrix leads to a significant increase in membrane flux and an overall decrease in the process selectivity. Composite membranes having 1 wt% sulfonated polyimide in the matrix showed increased values of membrane flux (0.960 kg m−2 h−1 in comparison with 0.682 kg m−2 h−1 for unmodified membranes at 40°C, 10 wt% methanol), while having similar selectivity values (79.2 wt% methanol in permeate in comparison with 82 wt% for unmodified membranes at 40°C, 10 wt% methanol). Modified membrane showed the highest separation factor of 147 while separating methanol from its 3 wt% mixture with methyl‐tert butyl ether at 52°C with the overall flux of 1.01 kg m−2 h−1. A semiempirical mathematical model was developed and applied to test the efficiency of obtained membranes in the hybrid process of methanol/methyl‐tert‐butyl ether mixtures separation.
Use of Biologics to Treat Relapsing and/or Refractory Eosinophilic Granulomatosis With Polyangiitis: Data From a European Collaborative Study
Authors: Canzian Alice , Venhoff Nils , Urban Maria Letizia , Sartorelli Silvia , Ruppert Anne‐Marie , Groh Matthieu , Girszyn Nicolas , Taillé Camille , Maurier François , Cottin Vincent , de Moreuil Claire , Germain Vincent , Samson Maxime , Jachiet Marie , Denis Laure , Rieu Virginie , Smets Perrine , Pugnet Grégory , Deroux Alban , Durel Cécile‐Audrey , Aouba Achille , Cathébras Pascal , Deligny Christophe , Faguer Stanislas , Gil Helder , Godeau Bertrand , Lifermann François , Phin‐Huynh Sophie , Ruivard Marc , Bonniaud Philippe , Puéchal Xavier , Kahn Jean‐Emmanuel , Thiel Jens , Dagna Lorenzo , Guillevin Loïc , Vaglio Augusto , Emmi Giacomo , Terrier Benjamin ,   for the French Vasculitis Study Group and the European EGPA Study Group
Published: October 2020

ObjectiveTo describe the efficacy and safety of biologics for the treatment of eosinophilic granulomatosis with polyangiitis (EGPA).MethodsA retrospective European collaborative study was conducted in patients with EGPA who received treatment with biologics for refractory and/or relapsing disease.ResultsAmong the 147 patients with EGPA included in the study, 63 received rituximab (RTX), 51 received mepolizumab (MEPO), and 33 received omalizumab (OMA). At the time of inclusion, the median Birmingham Vasculitis Activity Score (BVAS) was 8.5 (interquartile range [IQR] 5–13) in the RTX group, while the median BVAS in the OMA group was 2 (IQR 1–4.5) and the median BVAS in the MEPO group was 2 (IQR 1–5). In patients receiving RTX, the median BVAS declined both at 6 months (median 1, IQR 0–4.5) and at 12 months (median 0, IQR 0–2), and the frequency of remission, partial response, treatment failure, and stopping treatment due to adverse events was 49%, 24%, 24%, and 3%, respectively. For the treatment of glucocorticoid (GC)–dependent asthma, patients who received MEPO had a much better GC‐sparing effect and overall response than did patients who received OMA. The frequency of remission, partial response, treatment failure, and stopping treatment due to adverse events was 15%, 33%, 48%, and 4%, respectively, in the OMA group and 78%, 10%, 8%, and 4%, respectively, in the MEPO group. Remission rates at 12 months were 76% and 82% among patients receiving MEPO at a doses of 100 mg and 300 mg, respectively.ConclusionThese results suggest that RTX could be effective in treating relapses of EGPA vasculitis. MEPO is highly effective with a good safety profile in patients with GC‐dependent asthma. Our data suggest that 100 mg MEPO monthly could be an acceptable dosage for first‐line therapy in selected instances of EGPA, recognizing, however, that this has not been compared to the validated dosage of 300 mg monthly.
Synchrony of Respiratory Sinus Arrhythmia in Parents and Children with Autism Spectrum Disorder: Moderation by Interaction Quality and Child Behavior Problems
Authors: Wang Hui , Suveg Cynthia , West Kara B. , Han Zhuo R. , Zhang Xutong , Hu Xiaoyi , Yi Li 
Published: October 2020

Parent–child physiological synchrony, the matching of physiological states between parents and children, is theorized to be important for typically developing (TD) children, but less is known about this process in families of children with autism spectrum disorder (ASD). In a sample of 29 children (M age = 8.00 years, SD = 1.51 years) with ASD and 39 TD‐matched children (M age = 7.32 years, SD = 1.36 years) and their primary caregivers (n = 68), we examined whether parent–child dyads showed physiological synchrony indexed by respiratory sinus arrhythmia (RSA) during an interaction, and whether RSA synchrony differed by parent–child interaction quality and child behavior problems. Results indicated that dyads with TD children showed stronger positive RSA synchrony than dyads with children with ASD. Furthermore, for families of children with ASD, RSA synchrony was stronger in families with higher interaction quality and fewer child internalizing problems. These results provide preliminary evidence of parent–child RSA synchrony in families of children with ASD and identify factors that may influence this physiological process. Implications of these findings for social and emotional development in children with ASD are discussed.Lay SummaryParents and children can get “in tune” with one another at the biological level – a process called physiological synchrony. We studied physiological synchrony in families of children with autism spectrum disorder (ASD) in comparison to same‐aged children who had no mental health disorders. We also examined how physiological synchrony might be associated with parent–child interaction quality and child behavior problems. We found that families with a child with ASD showed weaker physiological synchrony than families with a child who was typically developing. Further, we found that physiological synchrony was stronger when parents and children with ASD showed higher interaction quality and when children with ASD had lower internalizing problems. These findings contribute to our understanding of family functioning in the context of ASD and have potential implications for future work.
An institutional perspective on consumers' environmental awareness and pro‐environmental behavioral intention: Evidence from 39 countries
Authors: Yang Morgan X. , Tang Xuan , Cheung Man Lai , Zhang Ying 
Published: October 2020

AbstractWe adopted an institutional approach to examine the relationship between environmental awareness and pro‐environmental behavioral intention at the individual level. We also compared the moderating effects of regulative, normative, and cognitive social institutions on this relationship. Based on survey data representing 42,962 consumers from 39 nations, we found that consumers' environmental awareness promoted their pro‐environmental behavioral intention. Moreover, we found that normative social institutions negatively moderated the relationship between environmental awareness and pro‐environmental behavioral intention, whereas cognitive social institutions positively moderated this relationship. This paper concludes with a discussion of the implications of these empirical findings.
Hemodynamic response to transseptal transcatheter mitral valve replacement in patients with severe mitral stenosis due to severe mitral annular calcification
Authors: Misumida Naoki , Guerrero Mayra , Pislaru Sorin V. , Alkhouli Mohamad , Rihal Charanjit S. , Eleid Mackram F. 
Published: October 2020

AbstractObjectivesWe aimed to investigate the invasive hemodynamic changes with transcatheter mitral valve replacement (TMVR) in patients with severe mitral stenosis due to severe mitral annular calcification.BackgroundThe hemodynamic response to TMVR in patients with mitral stenosis related to degenerative mitral annular calcification has not been fully elucidated.MethodsWe conducted retrospective review of patients who underwent successful transseptal TMVR with balloon‐expandable valves for symptomatic severe mitral stenosis due to mitral annular calcification at our institution between January 2014 and February 2020. Invasive hemodynamic measurements were obtained both before valve implantation (predeployment) and after (postdeployment).ResultsEighteen patients (age 72 ± 10 years, 44% female) were included for the analysis. There was a significant reduction in mean left atrial pressure (23.7 ± 5.6 mmHg versus 20.6 ± 4.8 mmHg; p = .01), left atrial v‐wave (mean 39.3 ± 10.2 mmHg versus 32.9 ± 9.9 mmHg; p = .01), and an increase in systemic mean blood pressure (72.6 mmHg ±11.2 versus 79.5 ± 9.9 mmHg; p = .02) postdeployment compared to predeployment. Patients who had symptom improvement at 30‐day follow‐up tended to have greater reduction in mean left atrial pressure (4.4 ± 4.4 mmHg versus 0.5 ± 5.2 mmHg; p = .16) and v‐wave (8.6 ± 9.0 mmHg versus 0.7 ± 8.4 mmHg; p = .10) compared to those who did not experience improvement of symptoms.ConclusionsTransseptal TMVR for severe mitral stenosis due to mitral annular calcification is associated with reductions in mean left atrial pressure and left atrial v‐wave, and an increase in systemic arterial pressure.
Fall dry matter yield and nutritive value of winter rye, wheat, and triticale cultivars in Wisconsin
Authors: Coblentz Wayne K. , Akins Matthew S. , Cavadini Jason S. 
Published: October 2020

AbstractAlthough grazing vegetative winter annual cereals is common throughout the Southern Plains, it generally has not been considered in the northern United States. This research aimed to evaluate the fall forage yield and nutritive value of winter wheat (Triticum aestivum L.), rye (Secale cereale L.), and triticale [× Triticosecale Wittm. ex A. Camus (Secale × Triticum)], cultivars in central Wisconsin. The trial was conducted over 3 yr in a randomized complete block design. Plots were established on 15 Aug. 2017, 13 Aug. 2018, and 1 Aug. 2019. Treatments consisted of a factorial arrangement of three winter cereal species (rye, triticale and wheat) and four targeted fall harvest dates (15 October, 1 November, 15 November, and 1 December). Fall yields ranged from 1,819 to 1,994, 465 to 957, and 1,144 to 1,357 lb dry matter (DM) acre–1 across species during 2017, 2018, and 2019, respectively, but consistent advantages for any species were difficult to discern. There was little evidence that fall yields were improved by delaying the harvest date beyond 15 October. Although the nutritive value of winter cereals was excellent, variations in net energy of lactation (NEL) were positively correlated with water‐soluble carbohydrates for 2018 (r = 0.57) and 2019 (r = 0.46). Whole‐plant ash was negatively associated with NEL, yielding significant correlations for 2017 (r = –0.97), 2018 (r = –0.88), and 2019 (r = –0.66). Spring yields of cereal rye were reduced compared with other species in 2019 and 2020 but no differences were detected in 2018.