bluuebunny/crossref_metadata_2025_split huggingface dataset:
A expansão da língua portuguesa: algmas reflexões a partir do contexto espanhol
Authors: Sandes Egisvanda Isys de Almeida , Ferrero Ana María Díaz , Monteiro-Plantin Rosemeire Selma 
Published: April 2020

Nesse artigo são apresentadas algumas reflexões sobre a expansão da língua portuguesa observadas a partir da perspectiva do contexto espanhol e o papel das universidades no processo. Como membro participante da Eurozona, o país ibérico sofreu com as consequências resultantes da crise financeira que impactou o mundo entre 2008 e 2013, especificamente por ver a evolução de seu processo interno provocar a fuga ao exterior de jovens cérebros e acelerar a internacionalização das empresas e universidades. Como um dos destino mais preferidos foi o Brasil, esse movimento provocou um crescimento no interesse por aprender a língua portuguesa e os diversos aspectos de sua cultura. Como consequência, as universidades tiveram suas rotinas alteradas para atender às novas necessidades da agitação mundial, não só por conta da formação de profissionais para o ensino de português como língua estrangeira (PLE), mas também para elaborar projetos que atendessem o vigente processo de internacionalização e mobilização de pesquisadores e estudantes, além do público social imigrante, vítimas dos eventos sucessivos após o advento da globalização.
Surface Regulation of CsPbBr3 Quantum Dots for Standard Blue‐Emission with Boosted PLQY
Authors: Shi Shasha , Wang Yong , Zeng Siyuan , Cui Ying , Xiao Yin 
Published: April 2020

AbstractIt is demonstrated that, via surface treatment of CsPbBr3 perovskite quantum dots (PeQDs) by introducing small amount of organic ammonium chlorides possessing short alkyl chain (C ≤ 4) in methyl acetate in the typical purification process, the emission can be tuned from green to blue region with boosted photoluminescence quantum yield (PLQY). The Cl− mainly works on the surface of PeQDs to fill bromide vacancy, which generates a passivated mixed‐halide surface and avoids formation of defects deep within bandgap. Meanwhile, the replacement of initial long‐chain ligands with short chain ammonium moiety benefits the film PLQY. Accordingly, a standard blue emission of 461 nm with a high film PLQY of 52% is accessed and the corresponding colloidal shows a PLQY of 80% at 456 nm. This method is also proved to be a versatile tool to boost the PLQY of PeQDs by using short chain ammonium halides bearing the same X with the initial CsPbX3. A near‐unity colloidal PLQY of 97% and 98% is achieved for CsPbBr3 and CsPbI3 respectively. Quantum dots light‐emitting diode (QLED) with treated CsPbBr3 affords a standard blue electroluminescence of 459 nm and a maximum external quantum efficiency of 0.3%.
Silicon Anode with High Initial Coulombic Efficiency by Modulated Trifunctional Binder for High‐Areal‐Capacity Lithium‐Ion Batteries
Authors: Li Zeheng , Zhang Yaping , Liu Tiefeng , Gao Xuehui , Li Siyuan , Ling Min , Liang Chengdu , Zheng Junchao , Lin Zhan 
Published: April 2020

AbstractHigh‐capacity electrode materials play a vital role for high‐energy‐density lithium‐ion batteries. Silicon (Si) has been regarded as a promising anode material because of its outstanding theoretical capacity, but it suffers from an inherent volume expansion problem. Binders have demonstrated improvements in the electrochemical performance of Si anodes. Achieving ultrahigh‐areal‐capacity Si anodes with rational binder strategies remains a significant challenge. Herein, a binder‐lithiated strategy is proposed for ultrahigh‐areal‐capacity Si anodes. A hard/soft modulated trifunctional network binder (N‐P‐LiPN) is constructed by the partially lithiated hard polyacrylic acid as a framework and partially lithiated soft Nafion as a buffer via the hydrogen binding effect. N‐P‐LiPN has strong adhesion and mechanical properties to accommodate huge volume change of the Si anode. In addition, lithium‐ions are transferred via the lithiated groups of N‐P‐LiPN, which significantly enhances the ionic conductivity of the Si anode. Hence, the Si@N‐P‐LiPN electrodes achieve the highest initial Coulombic efficiency of 93.18% and a stable cycling performance for 500 cycles at 0.2 C. Specially, Si@N‐P‐LiPN electrodes demonstrate an ultrahigh‐areal‐capacity of 49.59 mAh cm−2. This work offers a new approach for inspiring the battery community to explore novel binders for next‐generation high‐energy‐density storage devices.
Performance enhancement of copper indium diselenide photovoltaic module using inorganic phase change material
Authors: Karthick Alagar , Ramanan Pichandi , Ghosh Aritra , Stalin Balasubramaniam , Vignesh Kumar Ramalingam , Baranilingesan Irusappan 
Published: April 2020

AbstractThe work presents the method to increase the electrical efficiency and power output of photovoltaic (PV) panel with the use of phase change material (PCM). CaCl2.6H2O–Fe3Cl2.6H2O eutectic has a suitable melting point and high latent heat for temperature regulation of PV panel. The work has been focused on the experimental setup and simulation heat extraction from the PV panel with the use of ANSYS software. A modification of copper indium diselenide (CIS) PV module from Solar Frontier (SF170‐S) was made with a eutectic mixture (70:30) of calcium chloride hexahydrate (70%) and iron (III) chloride hexahydrate phase change material. The cell temperature of the PV panel with and without PCM was measured and compared for two typical days. The simulation of the PV‐PCM systems comprising both PV panels was performed using ANSYS (fluent) software, followed by the comparison of the results actual experimental data. The experimental results show that the maximum temperature difference on the surface of PV panel without PCM was 9°C higher than that on the panel with PCM in a period of 1 day. Referring to experimental results, the calculation of the maximum and average increase of power gain was made for PV‐PCM panel. Final results show that the electricity production of PV‐PCM panel was higher for 96.55 Whr in a particular day of experimentation.
Electrical, thermal, and mechanical properties of silicone foam composites filled with carbon‐based nanofillers
Authors: Zhang Yu‐Long , Zang Chong‐Guang , Jiao Qing‐Jie 
Published: April 2020

AbstractIt is critical to develop a new method to prepare engineered carbon‐based fillers for high‐performance applications. In this article, the functional nanocarbon‐based fillers (FG‐M) composed of multiwalled carbon nanotubes (MWNTs) and graphene oxide (GO) was synthesized by a simple self‐assembly reaction under the existence of triethoxyvinylsilane. Based on the FG‐M fillers, the silicone foam composites (FG‐M/SF) were prepared, and the electrical, thermal, and mechanical properties of the composites were studied. Results showed that the FG‐M could effectively improve the electrical, thermal, and mechanical properties of the composites compared with the single‐filler system (GO/SF and MWNTs/SF). Especially, the composites exhibited the best synergistic effect on electrically, thermal and mechanical enhancement while the ratio of MWNTs and GO was close to 1:1. Moreover, the effect of type and content of fillers on the rheological properties and density of the composites was also studied. The result showed that the FG‐M/SF system has good thixotropic and foaming performance. The FG‐M filler will have a good application prospect in the preparation of high‐performance SF composites.
Messung und Simulation der Erwärmung von ermüdungsbeanspruchten Betonprobekörpern
Authors: Vogel Albert , Völker Conrad , Bode Matthias , Marx Steffen 
Published: April 2020

AbstractIm vorliegenden Beitrag werden Messungen und Berechnungen vorgestellt, die die Temperaturentwicklung in Betonzylindern aufgrund zyklischer Beanspruchung genau beschreiben. Die Messungen wurden in einem Versuchsstand, die Berechnungen im FEM‐Programm ANSYS durchgeführt. Mithilfe der Temperaturmessungen konnten die Simulationen für die Temperaturentwicklung der Betonzylinder mit der verwendeten Betonrezeptur validiert werden. Die Untersuchungen lassen den Schluss zu, dass bei zyklischer Probekörperbelastung und der einhergehenden Probekörperdehnung Energie dissipiert wird und diese maßgeblich für die Erwärmung der Probe verantwortlich ist.
Digitalisierung im Verkehrswasserbau
Authors: Heinzelmann Christoph , Bödefeld Jörg , Duric Zorana 
Published: April 2020

AbstractDie Digitalisierung im Verkehrswasserbau bietet einerseits große Chancen und ist andererseits eine große Herausforderung für die nächsten Jahre. Um das Effizienzpotenzial der Digitalisierung voll auszuschöpfen, muss der gesamte Lebenszyklus der Bauwerke vom Planen und Bauen bis zum Betreiben und Unterhalten betrachtet werden. Unter dieser Voraussetzung ergeben sich Perspektiven, die weit über die Bauwerksplanung und die intelligente Bauwerksmodellierung hinausgehen. Der vorliegende Beitrag präsentiert mögliche Wege für eine erfolgreiche Digitalisierung im Verkehrswasserbau und zeigt auf, welche konkreten Schritte bereits heute unternommen werden können, um eine stabile Basis für eine nachhaltige digitale Entwicklung zu schaffen.
Hollow MoS3 Nanospheres as Electrode Material for “Water‐in‐Salt” Li–Ion Batteries
Authors: Quan Ting , Xu Yaolin , Tovar Michael , Goubard‐Bretesché Nicolas , Li Zhaolong , Kochovski Zdravko , Kirmse Holm , Skrodczky Kai , Mei Shilin , Yu Hongtao , Abou‐Ras Daniel , Wagemaker Marnix , Lu Yan 
Published: April 2020

AbstractThe use of “water‐in‐salt” electrolyte (WISE) (i. e., a highly concentrated aqueous solution) in rechargeable batteries has received increasing attention due to the significantly expanded electrochemical window compared to the limited voltage of conventional aqueous electrolytes. It enables the use of more positive/negative electrode material couples in aqueous batteries, resulting in an enhanced output voltage. However, one of the challenges is to identify promising anode materials for the “water‐in‐salt” Li‐ion batteries (WIS‐LIBs). Herein we for the first time demonstrate that MoS3, an amorphous chain‐like structured transitional metal trichalcogenide, is promising as anode in the WIS‐LIBs. In this work, hollow MoS3 nanospheres were synthesized via a scalable room‐temperature acid precipitation method. When applied in WIS‐LIBs, the prepared MoS3 achieved a high specific capacity of 127 mAh/g at the current density of 0.1 A/g and good stability over 1000 cycles. During operation, MoS3 underwent irreversible conversion to Li2MoO4 (with H2S and H2 evolution) during the initial Li ion uptake, and was then converted gradually to a more stable and reversible LixMoOy (2≤y≤4)) phase along cycling. Amorphous Li‐deficient Lix‐mMoOy/MoOz was formed upon delithiation. Nevertheless, MoS3 outperformed MoO3 in WIS‐LIBs, which could be accredited to its initial one‐dimensional molecular structure and the amorphous nature of the delithiated product facilitating charge transport. These results demonstrated a novel routine for synthesizing metal sulfides with hollow structures using a template‐based method and push forward the development of metal sulfides for aqueous energy storage applications.
Determination of plasma homocysteine with a UHPLC–MS/MS method: Application to analyze the correlation between plasma homocysteine and whole blood 5‐methyltetrahydrofolate in healthy volunteers
Authors: Ji Yubin , Luo Hongjun , Li Hui , Lin Zhexuan , Luo Wenhong 
Published: April 2020

AbstractAn ultra‐high performance liquid chromatography tandem mass spectrometry method was developed for determination of homocysteine (HCY) in human plasma. The HCY was derivatized with 2‐chloro‐1‐methylquinolinium tetrafluoroborate and isolated using solid‐phase extraction. Derivatization, isolation and detection procedures were optimized. Satisfactory linearity was obtained with determination coefficients (r2) >0.999. The intra‐ and inter‐day precisions were in the interval of 1.2–5.1% and accuracy was within ±7%. Mean recoveries were close to 100%. The limit of detection and the limit of quantification were 0.46 and 1.38 μmol/L, respectively. The method was then applied to investigate the relationship between plasma HCY and whole blood 5‐methyltetrahydrofolate levels in healthy volunteers. The results revealed that the plasma level of HCY was significantly negatively correlated to whole blood 5‐methyltetrahydrofolate in volunteers.
Effect of Crystallization Conditions on the Metastable Zone Width and Nucleation Kinetics of p‐Aminobenzoic Acid in Ethanol
Authors: Mohd Noor Siti Zulaikha , Camacho Diana M. , Yun Ma Cai , Mahmud Tariq 
Published: April 2020

AbstractA detailed knowledge of the metastable zone width (MSZW) and nucleation kinetics is vital for the design of batch cooling crystallization processes. Factors such as cooling rate and impeller speed affect the MSZW and nucleation kinetics. Crystallization and dissolution temperatures were measured as a function of cooling rate and impeller speed during the batch cooling crystallization of p‐aminobenzoic acid (pABA) from ethanol in a 0.5‐L stirred‐tank crystallizer. The polythermal experimental data were analyzed using the Nyvlt and first principles‐based Kashchiev‐Borissova‐Hammond‐Roberts (KBHR) methods. In all experimental cases, the latter model revealed that the nucleation process of pABA in ethanol was dominated by an instantaneous nucleation mechanism. The Nyvlt and KBHR analyses delivered a range of parameter values associated with a power‐law model describing the nucleation rate as well as the concentration of nuclei.
Kinetics of Electrophilic Fluorination of Steroids and Epimerisation of Fluorosteroids
Authors: Rozatian Neshat , Harsanyi Antal , Murray Ben J. , Hampton Alexander S. , Chin Emily J. , Cook Alexander S. , Hodgson David R. W. , Sandford Graham 
Published: April 2020

AbstractFluorinated steroids, which are synthesised by electrophilic fluorination, form a significant proportion of marketed pharmaceuticals. To gain quantitative information on fluorination at the 6‐position of steroids, kinetics studies were conducted on enol ester derivatives of progesterone, testosterone, cholestenone and hydrocortisone with a series of electrophilic N−F reagents. The stereoselectivities of fluorination reactions of progesterone enol acetate and the kinetic effects of additives, including methanol and water, were investigated. The kinetics of epimerisation of 6β‐fluoroprogesterone to the more pharmacologically active 6α‐fluoroprogesterone isomer in HCl/acetic acid solutions are detailed.
Quality of decision aids developed for women at average risk of breast cancer eligible for mammographic screening: Systematic review and assessment according to the International Patient Decision Aid Standards instrument
Authors: Hild Sandrine , Johanet Marion , Valenza Anna , Thabaud Maïna , Laforest Flore , Ferrat Emilie , Rat Cédric ,   for the DEDICACES Group, the French National College of General Practitioners
Published: April 2020

Mammographic screening contributes to a reduction in specific mortality, but it has disadvantages. Decision aids are tools designed to support people's decisions. Because these aids influence patient choice, their quality is crucial. The objective of the current study was to conduct a systematic review of decision aids developed for women eligible for mammographic screening who have an average breast cancer risk and to assess the quality of these aids. The systematic review included articles published between January 1, 1997, and August 1, 2019, in the PubMed, Embase, Cochrane, and PsycInfo databases. The studies were reviewed independently by 2 reviewers. Any study containing a decision aid for women eligible for mammographic screening with an average breast cancer risk was included. Two double‐blind reviewers assessed the quality of the selected decision aids using the International Patient Decision Aid Standards instrument, version 3 (IPDASi). Twenty‐three decision aids were extracted. Classification of decision aid quality using the IPDASi demonstrated large variations among the decision aids (maximum IPDASi score, 188; mean ± SD score, 132.6 ± 23.8; range, 85‐172). Three decision aids had high overall scores. The 3 best‐rated dimensions were disclosure (maximum score, 8; mean score, 6.8), focusing on transparency; information (maximum score, 32; mean score, 26.1), focusing on the provision of sufficient details; and probabilities (maximum score, 32; mean score 25), focusing on the presentation of probabilities. The 3 lowest‐rated dimensions were decision support technology evaluation (maximum score, 8; mean score, 4.3), focusing on the effectiveness of the decision aid; development (maximum score, 24; mean score, 12.6), evaluating the development process; and plain language (maximum score, 4; mean score, 1.9), assessing appropriateness for patients with low literacy. The results of this review identified 3 high‐quality decision aids for breast cancer screening.
Nomen est omen, cognitive dissonance, and homology of memory centers in crustaceans and insects
Authors: Strausfeld Nicholas J. 
Published: April 2020

AbstractIn 1882, the Italian embryologist Giuseppe Bellonci introduced a nomenclature for structures in the stomatopod crustacean Squilla mantis that he claimed correspond to insect mushroom bodies, today recognized as cardinal centers that in insects mediate associative memory. The use of Bellonci's terminology has, through a series of misunderstandings and entrenched opinions, led to contesting views regarding whether centers in crustacean and insect brains that occupy corresponding locations and receive comparable multisensory inputs are homologous or homoplasic. The following describes the fate of terms used to denote sensory association neuropils in crustacean species and relates how those terms were deployed in the 1920s and 1930s by the Swedish neuroanatomist Bertil Hanström to claim homology in insects and crustaceans. Yet the same terminology has been repurposed by subsequent researchers to promote the very opposite view: that mushroom bodies are a derived trait of hexapods and that equivalent centers in crustaceans evolved independently.
Hollow CeOx/CoP Heterostructures Using Two‐dimensional Co−MOF as Template for Efficient and Stable Electrocatalytic Water Splitting
Authors: Zhang Tong , Wu Xiaoxia , Fan Yifan , Shan Changfu , Wang Bingkai , Xu Huajie , Tang Yu 
Published: April 2020

AbstractConstructing heterostructures has been identified as an efficient means to optimize the catalytic activity and boost electrocatalytic performances. Herein, we designed a novel hollow CeOx/CoP heterostructure supported on nickel foam (NF) through two‐dimensional Co‐metal‐organic framework (Co−MOF) as template, which could be used in electrocatalytic water splitting The hollow CeOx/CoP/NF nanocatalyst demonstrated excellent activities toward oxygen evolution reaction (OER) in anode and hydrogen evolution reaction (HER) in cathode with relatively low overpotential (264 mV and 117 mV) at 10 mA cm−2. Besides, the battery potential was only 1.63 V toward electrocatalytic water‐splitting at 10 mA cm−2, and demonstrated excellent operational durability for 60 h. In this work, introducing CeOx significantly enhanced the inherent activity of monophase transition‐metal phosphides (TMPs). Thus, this work may provide a new standpoint for constructing heterostructures with high activity containing transition‐metal compounds and rare earth species for electrocatalytic water splitting.
Fw‐fuzz: A code coverage‐guided fuzzing framework for network protocols on firmware
Authors: Gao Zicong , Dong Weiyu , Chang Rui , Wang Yisen 
Published: April 2020

SummaryFuzzing is an effective approach to detect software vulnerabilities utilizing changeable generated inputs. However, fuzzing the network protocol on the firmware of IoT devices is limited by inefficiency of test case generation, cross‐architecture instrumentation, and fault detection. In this article, we propose the Fw‐fuzz, a coverage‐guided and crossplatform framework for fuzzing network services running in the context of firmware on embedded architectures, which can generate more valuable test cases by introspecting program runtime information and using a genetic algorithm model. Specifically, we propose novel dynamic instrumentation in Fw‐fuzz to collect the running state of the firmware program. Then Fw‐fuzz adopts a genetic algorithm model to guide the generation of inputs with high code coverage. We fully implement the prototype system of Fw‐fuzz and conduct evaluations on network service programs of various architectures in MIPS, ARM, and PPC. By comparing with the protocol fuzzers Boofuzz and Peach in metrics of edge coverage, our prototype system achieves an average growth of 33.7% and 38.4%, respectively. We further verify six known vulnerabilities and discover 5 0‐day vulnerabilities with the Fw‐fuzz, which prove the validity and utility of our framework. The overhead of our system expressed as an additional 5% of memory growth.
Flux Growth and X‐Ray Diffraction Study of the Crystal Structure of Ca/SrMoO4 Single Crystals
Authors: Zhang Shoubao , Yu Haitian , Han Shuo , Ni Meiyan , Liu Xiaoli , Zhao Hongyan , Zhou Shaoshuai 
Published: April 2020

AbstractSingle crystals of CaMoO4 and SrMoO4 are grown by a flux‐growth technique using the corresponding chlorides as the flux. The crystal structures of CaMoO4 and SrMoO4 are refined using powder X‐ray diffraction data: space group I41/a (no. 88), Z = 4. Unlike SrMoO4, which can be reduced to SrMoO3, the CaMoO4 decomposes to CaO and Mo in H2/Ar (5%) flow. It is probably because the highly distorted MoO4 tetrahedron in CaMoO4 hinders the structural transition. The distortion of MoO4 tetrahedron is also confirmed by their emission spectra.
A novel high‐performance liquid chromatography with diode array detector method for the simultaneous quantification of the enzyme‐reactivating oximes obidoxime, pralidoxime, and HI‐6 in human plasma
Authors: Kranawetvogl Tamara , Steinritz Dirk , Thiermann Horst , John Harald 
Published: April 2020

AbstractOximes such as pralidoxime (2‐PAM), obidoxime (Obi), and HI‐6 are the only currently available therapeutic agents to reactivate inhibited acetylcholinesterase (AChE) in case of intoxications with organophosphorus (OP) compounds. However, each oxime has characteristic agent‐dependent reactivating efficacy, and therefore the combined administration of complementary oximes might be a promising approach to improve therapy. Accordingly, a new high‐performance liquid chromatography method with diode‐array detection (HPLC‐DAD) was developed and validated allowing for simultaneous or single quantification of 2‐PAM, Obi, and HI‐6 in human plasma. Plasma was precipitated using 5% w/v aqueous zinc sulfate solution and subsequently acetonitrile yielding high recoveries of 94.2%–101.0%. An Atlantis T3 column (150 × 2.1mm I.D., 3 μm) was used for chromatographic separation with a total run time of 15 min. Quantification was possible without interferences within a linear range from 0.12 to 120 μg/mL for all oximes. Excellent intra‐day (accuracy 91.7%–98.6%, precision 0.5%–4.4%) and inter‐day characteristics (accuracy 89.4%–97.4%, precision 0.4%–2.2%) as well as good ruggedness were found. Oximes in processed samples were stable for at least 12 h in the autosampler at 15°C as well as in human plasma for at least four freeze–thaw cycles. Finally, the method was applied to plasma samples of a clinical case of pesticide poisoning.