bluuebunny/crossref_metadata_2025_split huggingface dataset:
Polydopamine‐Mediated Superlyophobic Polysiloxane Coating of Porous Substrates for Efficient Separation of Immiscible Liquids
Authors: Mai Van Cuong , Lim Desmond Xin An , Das Paramita , Hou Shuai , Lim Teik Thye , Duan Hongwei 
Published: August 2020

AbstractLyophobic membrane has the potential to separate immiscible liquids. However, the multistep fabrication and limited option of materials have created major challenges for their practical application. Here, a strategy to fabricate superlyophobic materials is presented by using polydopamine (PDA) as an intermediate coating. The results demonstrate that PDA nanoparticles deposited on diverse substrates can direct the subsequent formation of polysiloxane microsheets (PSMSs), which increases surface roughness and results in superlyophobicity towards high surface tension (ST) liquids and superlyophilicity to liquids with ST of 33 mN m‐1 and below. Superlyophobic membranes fabricated from stainless steel mesh, cotton fabric, and filter papers show high efficiency for continuous separations of chloroform/water (>96%) and carbon tetrachloride/formamide (>97%). In addition, superlyophobic melamine foam and polyurethane foam can absorb various low ST liquids with capacities ranging from 53 to 120 g g‐1 and from 26.5 to 52.5 g g‐1, respectively, revealing the efficient separation of a broad range of immiscible liquids. All of the as‐prepared superlyophobic materials show excellent regeneration with insignificant change of separation efficiency over 10 cycles. The preparation route for superlyophobic materials in this work introduces a new strategy for the separation of immiscible liquids by both batch absorption and continuous filtration treatment.
Quantum Dot Enabled Perovskite Thin Film with Enhanced Crystallization, Stability, and Carrier Diffusion via Pulsed Laser Nanoengineering
Authors: Song Chunpeng , Yang Huanrui , Liu Feng , Ye Lei , Cheng Gary J. 
Published: August 2020

AbstractThe temperature control at the material interface, such as grain boundaries, is critical for defect density, and phases, which are important for high‐performance perovskite‐based optoelectronic devices. However, it is challenging to fine‐tune the microstructures in perovskite films with well‐controlled grain structure, interface defects, porosity, phase structure, and strains, simultaneously. Here, pulsed laser technology is combined with carbon quantum dots (CQDs) into perovskite absorbers with pore‐free, less defect, high crystallinity, enhanced absorption, low stress, and phase‐stabilized microstructures. Due to laser–CQD interaction‐induced grain boundary microstructure changes, perovskite films can be fabricated with much larger grains (>10 times) than those after thermal annealing. As CQDs are embedded to passivate grain, this leads to reduced grain boundary barrier at the interface, which significantly improve the carrier transportation in perovskite films. The shift of perovskite band to vacuum energy level leads to remarkable improvement of carrier extraction efficiency and lifetime, leading to much higher mobility of photogenerated carriers and diffusion length (>1 μm). The laser‐induced thermomechanical momentum significantly enhances crystal interface with hydrophobic perovskite film, resulting in much less residual tensile stress by 20 times and excellent stability. Pulsed‐laser‐assisted QD additive engineering has great potential for perovskites films under harsh conditions.
Electrochemically Active Red P/BaTiO3‐Based Protective Layers Suppressing Li Dendrite Growth for Li Metal Batteries
Authors: Kwon Bomee , Ha Seongmin , Kim Dong‐Min , Koo Dongho , Lee Jeonghyeop , Lee Kyu Tae 
Published: August 2020

AbstractLi metal has been considered a promising anode for high‐energy density batteries because of its high specific capacity. However, uncontrolled Li dendrite growth and severe electrolyte decomposition are detrimental obstacles hindering the practical applications of lithium metal batteries. Herein, electrochemically active red P‐based protective layers are introduced to suppress Li dendrite growth during cycling. Red P particles confined in the protective layer react with Li dendrites, forming Li3P, as Li dendrites are penetrating through the protective layer. As a result, Li metal is no longer plated on the Li3P surface because Li3P is electrically insulating, eventually leading to suppressing Li dendrite growth. Moreover, the red P‐based protective layer is functionalized with dielectric BaTiO3 nanoparticles to scavenge radicals generated from electrolyte decomposition as well as to improve the mechanical strength of protective layers. The synergy effect of electrochemically active red P and inactive BaTiO3 gives rise to the improved short‐circuit time of Li metal and the excellent cycle performance and Coulombic efficiency of Li/Li symmetric and Li/LiFePO4 full cells over 200 cycles, despite the fact that the cell performances are examined with the conventional electrolyte of LiPF6 in ethylene carbonate/diethyl carbonate that is highly unstable against Li metal.
Airy Beam Generation: Approaching Ideal Efficiency and Ultra Wideband with Reflective and Transmissive Metasurfaces
Authors: Guo Wen‐Long , Chen Ke , Wang Guang‐Ming , Luo Xin‐Yao , Cai Tong , Zhang Chi‐Ben , Feng Yijun 
Published: August 2020

AbstractAiry beams are essential for photonic applications, owing to their intriguing diffraction‐free, self‐accelerating, and self‐healing properties. Recently, 2D metasurfaces have offered great opportunities for generating Airy beams within subwavelength thickness. However, they suffer from the bottlenecks of low efficiency and narrow bandwidth, which may limit their applications in practice. In this study, a strategy is proposed to design amplitude‐ and phase‐controllable metasurfaces that can generate desirable high‐efficiency and ultra wideband Airy beams, based on the Jones matrix analysis. Two exemplary prototypes of Airy beam generators operating in reflection and transmission geometries are demonstrated in the microwave region, achieving high efficiency approaching the theoretical limitation in an ultrawide bandwidth (fractal bandwidth of 84% for reflective prototype and 118% for transmissive). The results show a significant advantage of the bandwidth and total efficiency over low‐thickness metasurfaces. The proposed strategy and metasurface generators may trigger great interest in ultra wideband and high‐efficiency wave manipulations, with small thickness and flat profile compatible with integrated systems, which hold promise for structured light, metaoptics, beam shaping, and advanced holography.
Improving Performance of Nonvolatile Perovskite‐Based Photomemory by Size Restrain of Perovskites Nanocrystals in the Hybrid Floating Gate
Authors: Yang Wei‐Chen , Chiang Yun‐Chi , Lam Jeun‐Yan , Chuang Tsung‐Han , Ercan Ender , Chueh Chu‐Chen , Chen Wen‐Chang 
Published: August 2020

AbstractPerovskite‐based photomemory adopting a floating‐gate architecture recently attracts research attention for developing efficient photo‐recording devices due to its simplified structure and non‐contact light‐programming feature. Herein, the memory characteristics of such type device is improved by the precise control of the size of perovskite nanocrystals (NCs) in the hybrid floating gate. Compared to the previous case of using polystyrene (PS) as the host polymer matrix, a N‐containing polymer, poly(2‐vinyl pyridine) (P2VP), is revealed to better regulate the size of embedded perovskite NCs into the nanometer level (7–9 nm) owing to the intense coordination between the N atom in P2VP and the Pb2+ ions of perovskite through Lewis acid‐base interaction. As benefitting from the reduced current dissipation and interfacial charge recombination at the gate/channel interface, the P2VP‐derived photomemory not only delivers a much higher On/Off current ratio (105) than the value (103) of the reference PS‐based device but also requires a much shorter illumination time (5 s) and low drain voltage (‐1 V) to achieve decent photo‐recording function. Besides, it possesses good long‐term retention for 104 s, excellent stress endurance over 100 cycles, and respectable ambient stability over 6 months due to the well isolation of perovskite NCs in the P2VP matrix.
Fabrication of electrospun fibers from a waterborne soy‐based polyurethane employing polyethylene oxide as a coformer
Authors: Herrán Rodrigo , Molinari Fabricio N. , Bilbao Emanuel , Monsalve Leandro N. , Amalvy Javier I. 
Published: August 2020

AbstractThe fabrication of electrospun fibers made from aqueous dispersions of polyurethane obtained from renewable sources is an eco‐friendly method to produce porous membranes for different applications. Polyethylene oxide (PEO) has been already employed in formulations for allowing fiber formation, but its role was not yet completely understood. In this work the fabrication of electrospun fibers made from biobased polyurethane aqueous dispersion with PEO in order to obtain regular fibers is performed. The role of PEO was studied by thermal analysis, infrared and Raman spectroscopy, rheology, and fiber morphology. Polyurethane fibers were obtained only when PEO was added, otherwise the dispersion is electrosprayed and particles are formed. It was observed that PEO modifies the rheology of dispersion and assists coalescence of polyurethane particles. On the other hand, polyurethane fibers conserved their diameter and their homogeneous structure after removal of PEO by immersion in water, which indicates that the distribution of both polymers was even within the fibers. This work provides both an insight on the role of PEO and a route for the fabrication of eco‐friendly biobased polyurethane microfibers from aqueous dispersions.
Bright spectroscopic binaries: I. Orbital parameters of five systems with periods of P < 365 days
Authors: Jack Dennis , Hernández Huerta Missael Alejandro , Schröder Klaus‐Peter 
Published: August 2020

AbstractIn a well‐aimed search based on the recently published Gaia DR2 radial velocity data and performed with the robotic TIGRE telescope, we have discovered 19 bright (mV < 7.66 mag) spectroscopic binary stars. We present the radial velocity curves of five of these stars (HD 20656, HD 27259, HD 98812, HD 150600, HD 193082) with periods of P < 365 days. We determined their orbital parameters using the toolkit RadVel. The complete set of basic stellar parameters (effective temperature, surface gravity, metallicity, mass, and age) of the primary stars are determined using the observed intermediate resolution spectra (R ≈ 20,000) with iSpec and a comparison of the position in the Hertzsprung‐Russell diagram with stellar evolution tracks. All five primary stars have already evolved to the giant phase and possess low‐mass secondaries, which do not noticeably affect the spectra. Finally, we determined the minimum masses of the secondary stars of the binary systems and present conclusions about the properties of the binary systems.
The nuanced relationship between adverse childhood experiences and recidivism risk scores among women leaving jail: A preliminary exploration
Authors: Schick Vanessa , Roth Isabel , Link Andrea , Welch Alycia 
Published: August 2020

AbstractBackgroundWomen with histories of childhood trauma tend to score higher on recidivism risk/needs assessment tools, such as the Level of Service Inventory‐Revised: Screening Version (LSI‐R: SV). These may affect their chance of leaving custody, but risk scores may be inflated by reliance on additional items which reflect other fixed childhood events.AimsWe hypothesised that adverse childhood experiences (ACEs) would be related to immutable risk measures according to the LSI‐R: SV, such as juvenile arrest history, rather than more mutable factors, such as criminal attitudes.MethodsTwo interviewer‐administered questionnaires—one about ACEs and one about criminogenic risk and needs—were given to a cohort of women just after release from jail. Phi coefficients were used to test for associations between ? ACE scale scores and scores on the risk tool—the LSI‐R: SV.ResultsACE scale items were related to static risk item scores from the LSI‐R: SV, but not to any of the dynamic risk items except psychological health.ConclusionsRisk reduction is an important task in the criminal justice system, for which systematic risk assessment is an integral part of decision making. Self‐reported experience of psychological health apart, only fixed historical variables were related to estimated recidivism risk. There was no relationship between the mutable constructs of attitudes towards crime or employment status and estimated risk. This raises the question of whether the risk of recidivism is increased when there is a background of childhood trauma. Implications for using risk reduction tools to inform the need for trauma‐informed correctional care are discussed. Longitudinal research assessing recidivism is needed to test this further.
Effect of the PHY Domain on the Photoisomerization Step of the Forward Pr→Pfr Conversion of a Knotless Phytochrome
Authors: Fischer Tobias , Xu Qianzhao , Zhao Kai‐Hong , Gärtner Wolfgang , Slavov Chavdar , Wachtveitl Josef 
Published: August 2020

AbstractPhytochrome photoreceptors operate via photoisomerization of a bound bilin chromophore. Their typical architecture consists of GAF, PAS and PHY domains. Knotless phytochromes lack the PAS domain, while retaining photoconversion abilities, with some being able to photoconvert with just the GAF domain. Therefore, we investigated the ultrafast photoisomerization of the Pr state of a knotless phytochrome to reveal the effect of the PHY domain and its “tongue” region on the transduction of the light signal. We show that the PHY domain does not affect the initial conformational dynamics of the chromophore. However, it significantly accelerates the consecutively induced reorganizational dynamics of the protein, necessary for the progression of the photoisomerization. Consequently, the PHY domain keeps the bilin and its binding pocket in a more reactive conformation, which decreases the extent of protein reorganization required for the chromophore isomerization. Thereby, less energy is lost along nonproductive reaction pathways, resulting in increased efficiency.
Comparing the Antileishmanial Activity of Gold(I) and Gold(III) Compounds in L. amazonensis and L. braziliensis in Vitro
Authors: Minori Karen , Rosa Letícia B. , Bonsignore Riccardo , Casini Angela , Miguel Danilo C. 
Published: August 2020

AbstractAbstract: A series of mononuclear coordination or organometallic AuI/AuIII complexes (1–9) have been comparatively studied in vitro for their antileishmanial activity against promastigotes and amastigotes, the clinically relevant parasite form, of Leishmania amazonensis and Leishmania braziliensis. One of the cationic AuI bis‐N‐heterocyclic carbenes (3) has low EC50 values (ca. 4 μM) in promastigotes cells and no toxicity in host macrophages. Together with two other AuIII complexes (6 and 7), the compound is also extremely effective in intracellular amastigotes from L. amazonensis. Initial mechanistic studies include an evaluation of the gold complexes′ effect on L. amazonensis’ plasma membrane integrity.
The Influence of the color of light on the customers' perception of service quality and satisfaction in the restaurant
Authors: Özkul Emrah , Bilgili Bilsen , Koç Erdoğan 
Published: August 2020

AbstractThe physical evidence is influential on the consumer's attitude, quality perception, and purchasing behavior. The service atmosphere within the physical evidence scope is an element that requires huge investments. Together with low‐cost small changes, the physical environment could be rendered much more attractive to the consumer. Color and light are among the elements that are suitable for these changes. This research aims to determine whether the color of light in the service atmosphere affects the customer's quality perceptions and customer satisfaction and whether this effect differs according to the color of light. To this end, the restaurant business, which has an essential place in the tourism industry, was chosen as the research experiment ambient. A total of five experiments were conducted in five ambient lighted in different colors with participants. Data were collected with 204 the form of the experiment question According to the analysis results, the perception of service quality and the level of satisfaction were higher in red and yellow‐lighted ambient than those in blue and green‐lighted ambient. In line with the results, recommendations were made to reduce the physical environment costs in the service production process in restaurants and to achieve a cleaner service production, sustainable production, and consumption through more efficient use of resources.HighlightsThe light color in the service atmosphere affects the perceived quality and customer satisfaction.Perceived service quality and customer satisfaction differ according to the light color in the service atmosphere.By changing the light color in the service atmosphere, it is possible to increase the level of quality perception and customer satisfaction in a positive way.By changing the color of the light in the service environment, efficient and sustainable cleaner production can be realized with low costs.
Root phenotypic diversity in common bean reveals contrasting strategies for soil resource acquisition among gene pools and races
Authors: Jochua Celestina N. , Strock Christopher F. , Lynch Jonathan P. 
Published: August 2020

AbstractAlthough genetic diversity for aboveground traits has been well characterized in common bean (Phaseolus vulgaris L.), little is known about population‐specific variation within this species for root architecture. To assess the diversity of root phenotypes, a total of 196 accessions from a core collection were evaluated in the laboratory and field in Pennsylvania, USA, and Chokwe, Mozambique. Substantial phenotypic variation for 15 root phenes exists among gene pools, races, and genotypes. Principal component analysis revealed that Andean and Mesoamerican gene pools and races have distinct integrated root phenotypes. Unsupervised cluster analyses of root phenes identified five groups with distinct integrated root phenotypes and soil foraging strategies. Although integrated phenotypes associated with adaptation to drought and low P availability were found in both gene pools, phenotypes for drought adaptation were more prevalent among Mesoamerican accessions, whereas phenotypes for adaptation to suboptimal P were more common among Andean accessions. These genotypic differences in root phenotypes reflect contrasting strategies for soil resource acquisition and may possibly have evolved as an adaptation to the edaphic conditions in the environments to which Andean and Mesoamerican gene pools are endemic. This diversity of root architectural strategies for soil exploration can serve as an important resource for breeding programs and hybridization between gene pools may result in the generation of novel root phenotypes with improved soil resource acquisition.
Furfural to 1,4‐Butanediol/Tetrahydrofuran – A Detailed Catalyst and Process Design
Authors: Lange Jean‐Paul , Wadman Sipke H. 
Published: August 2020

AbstractThe feasibility to convert furan, a direct derivative of furfural, to a mixture of 1,4‐butanediol (BDO) and tetrahydrofuran (THF) is demonstrated with industrially acceptable performances using mm‐sized pellets of a carbon‐supported RePd catalyst for 2000 h of operation. The reaction schemes were unraveled by spiking potential reaction intermediates and a full kinetic model was developed. Finally, we developed a comprehensive process flow scheme that integrates the conversion of furfural to furan, the recovery and purification of furan, its reductive hydration to BDO/THF as well as the recovery and purification of BDO and THF. This process concept appears economically viable at current furfural, BDO and THF market prices.
Photocatalytic Reduction of CO2to CO over Quinacridone/BiVO4Nanocomposites
Authors: Yu Xiaoxiao , Wen Fan , Zhang Fengtao , Yang Peng , Zhao Yanfei , Wu Yunyan , Wang Yingbin , Liu Zhimin 
Published: August 2020

AbstractSolar energy‐driven photoreduction of CO2to energy‐rich chemicals is of significance for sustainable development but challenging. Herein, quinacridone (QA)/nBiVO4(n=0.2–20, in whichnstands for the mass ratio of BiVO4to QA) nanocomposites were developed for photoreduction of CO2. Characterization of the materials with Fourier‐transform (FT)IR spectroscopy and X‐ray photoelectron spectroscopy (XPS) pointed to QA/nBiVO4preparation via hydrogen‐bonding‐directed self‐assembly of QA on BiVO4nanosheets. Using triethanolamine (TEOA) as a sacrifice reagent, QA/10BiVO4showed the best performance, affording CO with a production rate of 407 μmol g−1 h−1, 24 times higher than those of pure QA. It was indicated that the Z‐scheme charge‐transfer mechanism of QA/nBiVO4could significantly improve the separation and transmission efficiency of photo‐generated electrons and holes. This novel approach provides new insight for fabricating the composite photocatalytic materials of small molecule organic semiconductors and inorganic semiconductors with high efficiency for photocatalytic of reduction CO2.
Bacterial hepatocyte growth factor receptor agonist stimulates hepatocyte proliferation and accelerates liver regeneration in a partial hepatectomy rat model
Authors: Kalinin Egor V. , Chalenko Yaroslava M. , Sysolyatina Elena V. , Midiber Konstantin Y. , Gusarov Alexey M. , Kechko Olga I. , Kulikova Alexandra A. , Mikhaleva Ludmila M. , Mukhachev Andrey Ya. , Stanishevskyi Yaroslav M. , Mitkevich Vladimir A. , Sobyanin Konstantin A. , Ermolaeva Svetlana A. 
Published: August 2020

AbstractHepatocyte growth factor (HGF) is central to liver regeneration. The Internalin B (InlB) protein is a virulence factor produced by the pathogenic bacterium Listeria monocytogenes. InlB is known to mimic HGF activity by interacting with the HGF receptor (HGFR) and activating HGFR‐controlled signaling pathways. We expressed and purified the HGFR‐binding InlB domain, InlB321/15, cloned from the fully virulent clinical L. monocytogenes strain. HGFR and Erk1/2 phosphorylation was determined using Western blotting. The capacity of InlB321/15 to bind HGFR was measured using microscale thermophoresis. Liver regeneration was studied in a model of 70% partial hepatectomy (70%PHx) in male Wistar rats. The nuclear grade parameters were quantified using manual (percentage of binuclear hepatocytes), automated (nuclear diameters), or combined (Ki67 proliferation index) scoring methods. Purified InlB321/15 stimulated HGFR and Erk1/2 phosphorylation and accelerated the proliferation of HepG2 cells. InlB321/15 bound HGFR with Kd = 7.4 ± 1.3 nM. InlB321/15 injected intravenously on the second, fourth, and sixth days after surgery recovered the liver mass and improved the nuclear grade parameters. Seven days post 70% PHx, the liver weight indexes were 2.9 and 2.0%, the hepatocyte proliferation indexes were 19.8 and 0.6%, and the percentages of binucleated hepatocytes were 6.7 and 4.0%, in the InlB321/15‐treated and control animals, respectively. Obtained data demonstrated that InlB321/15 improved hepatocyte proliferation and stimulated liver regeneration in animals with 70% hepatectomy.