bluuebunny/crossref_metadata_2025_split huggingface dataset:
Phosphorization‐Induced Void‐Containing Fe3O4 Nanoparticles Enabling Low Lithiation/Delithiation Potential for High‐Performance Lithium‐Ion Batteries
Authors: Nie Yan , Zhang Hang , Zhang Jinfeng , Wang Lei , Zhong Siyu , Wu Yinglong , Duan Junfei , Shi Huimin , Victor Kipkoech Kirui , Zhang Guanhua , Duan Huigao 
Published: September 2019

AbstractIn terms of Fe3O4‐based anodes, enormous academic progress has been achieved over the past two decades; however, even with excellent half‐cell performance, the relatively high lithiation potential and unsatisfactory initial coulombic efficiency (ICE) represent two major barriers to their commercial application, at present. We propose partially phosphorized Fe3O4 (P−Fe3O4) with interior void spaces induced by phosphorization to enhance the Li+ storage property of Fe3O4‐based anodes. P−Fe3O4 anodes offer a much higher capacity at low potential compared with bare Fe3O4 electrodes. Additionally, the well‐designed nanostructure with preferable specific surface area prevents the initial irreversible lithium loss, which contributes to a brilliant ICE (80.8 % at 100 mA g−1). Moreover, in‐situ X‐ray diﬀraction proves that the formation of the LixFe3O4 phase results from an initial intercalation process. In particular, the output voltage and energy density of P−Fe3O4 full‐cells are much greater than those of Fe3O4 full‐cells. In this work, the P−Fe3O4 full‐cell exhibits a capacity of 680 mAh g−1 at 200 mA g−1 as well as an excellent rate capability of 267 mAh g−1 with a current density up to 1000 mA g−1. This study presents a new strategy to enhance Li+ storage of Fe3O4 enabling low lithiation/delithiation potential and high ICE, which may oﬀer exciting opportunities toward designing high‐performance full‐cells with commercial cathodes.
Persistent Chemiluminescent Glow of Phenoxy‐dioxetane Luminophore Enables Unique CRET‐Based Detection of Proteases
Authors: Hananya Nir , Press Ofir , Das Alakesh , Scomparin Anna , Satchi‐Fainaro Ronit , Sagi Irit , Shabat Doron 
Published: September 2019

AbstractChemiluminescence is being considered an effective imaging modality as it offers low background and high sensitivity. Recent discovery by our group has led to development of new phenoxy‐dioxetane chemiluminescence luminophores, which are highly bright under physiological conditions. However, the current scope of probes based on these luminophores is limited, as they can only be turned on by phenol protecting group removal. Here we present a new chemiluminescence resonance energy transfer (CRET) system, Glow‐CRET, in which light emission is triggered by proteolytic cleavage of a peptide substrate that links a dioxetane luminophore and a quencher. In order to compose such system, a new phenoxy‐dioxetane luminophore, 7‐HC‐CL, was developed. This luminophore exhibits intense and persistent glow chemiluminescence; it undergoes very slow chemiexcitation, and it has the highest chemiluminescence quantum yield ever reported under physiological conditions. Based on 7‐HC‐CL, a Glow‐CRET probe for matrix metalloproteinases, MMP‐CL, was synthesized. Incubation of MMP‐CL with its cognate protease resulted in 160‐fold increase in chemiluminescence signal. MMP‐CL was also able to detect matrix metalloproteinase activity in cancer cells with significantly higher signal‐to‐background ratio than an analogous fluorescence resonance energy transfer (FRET)‐based probe. This work is expected to open new horizons in chemiluminescence imaging, as it enables to use the dioxetanes in ways that had not been possible. We anticipate that 7‐HC‐CL and future derivatives will be utilized not only for the construction of further Glow‐CRET probes, but also for other applications, such as chemiluminescence tagging of proteins.
[2]Pseudorotaxane‐Based Supramolecular Optical Indicator for the Visual Detection of Cellular Cyanide Excretion
Authors: Zhou Jiong , Yu Guocan , Li Yang , Shen Jie , Wang Mengbin , Li Zhengtao , Wei Peifa , Tang Jianbin , Huang Feihe 
Published: September 2019

AbstractCyanide is extremely hazardous to living organisms and the environment. Owing to its wide range of applications and high toxicity, the development of functional materials for cyanide detection and sensing is highly desirable. Host–guest complexation between bis(p‐phenylene)‐34‐crown‐10 H and N‐methylacridinium salt G remarkably decreases the detection limit for cyanide anions compared with that of the guest itself. The [2]pseudorotaxane selectively recognizes the cyanide anion with high optical sensitivity as a result of the nucleophilic addition of the cyanide anion at the 9‐position of G. The host–guest complexation is further incorporated into supramolecular materials for the visual detection of cyanide anions, especially the detection of cellular cyanide excretion with a detection limit of 0.6 μm. This supramolecular method provides an extremely distinct strategy for the visual detection of cyanide anions.
Impact of A–D–A‐Structured Dithienosilole‐ and Phenoxazine‐Based Small Molecular Material for Bulk Heterojunction and Dopant‐Free Perovskite Solar Cells
Authors: Narayanaswamy Kamatham , Yadagiri Bommaramoni , Chowdhury Towhid Hossain , Swetha Thokala , Islam Ashraful , Gupta Vinay , Singh Surya Prakash 
Published: September 2019

AbstractHerein, the synthesis of the novel acceptor–donor–acceptor (A–D–A)‐structured small molecule Si‐PO‐2CN based on dithienosilole (DTS) as building block flanked by electron‐rich phenoxazine (POZ) units, which are terminated with dicyanovinylene, is presented. Si‐PO‐2CN showed unique electrochemical and photophysical properties and has been successfully employed in perovskite solar cells (PSCs) as well as in bulk heterojunction organic solar cells (OSCs). The PSCs fabricated with dopant‐free Si‐PO‐2CN as hole‐transport material (HTM) exhibited a power conversion efficiency (PCE) of 14.1 % (active area=1.02 cm2). Additionally, a PCE of 5.6 % has been achieved for OSCs, which employed Si‐PO‐2CN as p‐type donor material when blended with a [6,6]‐phenyl C71 butyric acid methyl ester (PC71BM) acceptor. The versatile application of Si‐PO‐2CN provides a pathway for further implementation of DTS‐based building blocks in solar cells for designing new molecules.
Iodine‐Promoted Domino Oxidative Cyclization for the One‐Pot Synthesis of Novel Fused Four‐Ring Quinoxaline Fluorophores by sp3 C−H Functionalization
Authors: Zhang Yong , Yang Min , Jia Chengli , Ji Min 
Published: September 2019

AbstractA method for the synthesis of novel fused four‐ring quinoxaline skeleton has been described by an I2 promoted sp3 C−H functionalization between 1,2,3,3‐tetramethyl‐3H‐indolium iodides and 1,2‐diamines. This transformation proceeds smoothly under metal‐ and peroxide‐free conditions through a sequential iodination, oxidation, annulation and rearrangement. Moreover, 8,9‐dichloro‐5,12,12‐trimethyl‐2‐(trifluoromethyl)‐5,12‐dihydroquinolino[2,3‐b]quinoxaline showed good photophysical properties and was used in live cell imaging, indicating the potential value of this skeleton as a fluorophore in probes.
An Unprecedented Ga/P Frustrated Lewis Pair: Synthesis, Characterization, and Reactivity
Authors: Sun Xiong , Zhu Qin , Xie Zhuoyi , Su Wei , Zhu Jun , Zhu Congqing 
Published: September 2019

AbstractFrustrated Lewis pairs (FLPs) represent a new paradigm of main‐group chemistry. The Lewis acidic centers in FLP chemistry are typically B and Al atoms in the studies reported over the past decade, and most of them are tri‐coordinated with strong electron‐withdrawing groups. Herein, a Ga/P system is reported which contains an unprecedented four‐coordinated Lewis acidic Ga center. This Ga/P species performs classical addition reactions toward heterocumulenes, alkyne, diazomethane, and transition metal complex. Regioselective formation of the products can be rationalized by DFT calculations. The penta‐coordinated gallium atom center in these products is rare in the FLP chemistry. This study enriches the diversity of FLPs and demonstrates that a four‐coordinated Lewis acidic site with a donor‐acceptor bond can also be FLP active.
Donor–Acceptor [2]‐ and [3]Catenanes Assembled from Versatile Pre‐Organized Cp*Rh/Ir‐Directed Pseudorotaxane Tectons
Authors: Liu Dong , Lu Ye , Lin Yue‐Jian , Jin Guo‐Xin 
Published: September 2019

AbstractA stepwise self‐assembly protocol has been used to synthesize [2]‐ and [3]catenanes. Firstly, binuclear Cp*Rh/Ir‐directed (Cp*=pentamethylcyclopentadienyl) pseudorotaxanes were prepared through self‐assembly, driven by donor–acceptor interactions between electron‐deficient naphthalenediimide (NDI) units and an electron‐rich crown ether. Subsequently, the pre‐organized pseudorotaxanes were applied as tectons for self‐assembly of [2]‐ and [3]catenanes by combination with very simple linkers. The structures of the catenanes were confirmed by NMR spectroscopy, ESI mass spectrometry, single‐crystal X‐ray diffraction analysis, and elemental analysis.
Herausforderung Turnaround
Authors: Woppowa Ljuba 
Published: September 2019

AbstractBei ihrem 28. Treffen tauschten die VDI‐Betriebsingenieure der Regionalgruppe Rhein‐Main‐Neckar bei Merck Gernsheim ihre Turnaround‐ ‐Erfahrungen aus. Intensiv besprochen wurden Energiestillstände und das Bilfinger Turnaround Concept (BTC).
Vorausschau ohne Hellseherei
Authors: Sulz Michaela 
Published: September 2019

AbstractProbleme beheben, bevor sie auftreten und Stress verursachen: darum geht es in der vorausschauenden Wartung. Worüber seit einigen Jahren viel geredet wird, wird immer mehr zur Realität bei vielen Anbietern. Die Kosten‐einsparungen sind enorm, zeigt ein Beispiel in der chemischen Abwasseraufbereitung. Dabei ist der Aufwand für die Anlagenbetreiber gering, sobald die Systeme aufgesetzt sind und sie selbständig die Prozesse steuern.
Kalkstein holt Phosphor zurück
Authors:   ZSW
Published: September 2019

AbstractAm Zentrum für Sonnenenergie‐ und Wasserstoff‐Forschung Baden‐Württemberg (ZSW) wird derzeit ein Verfahren entwickelt, das Phosphor bereits während der Verbrennung des Klärschlammes extrahiert. Eine Test‐anlage ist seit Frühjahr 2019 in Betrieb. Die wirtschaftlichen Aussichten des Phosphor‐Recyclings sind interessant: Ab 2029 wird die Rückgewinnung aus Klärschlämmen in Deutschland Pflicht für alle großen Kläranlagen
Phosphor‐Rückgewinnung aus Aschen
Authors: Kirchhof Jan 
Published: September 2019

AbstractEin abfallfreies Verfahren, mit dem Phosphor aus Aschen recycelt und direkt einsatzfähiger Qualitätsdünger ‐erzeugt werden kann, hat der Anlagenbauer Glatt Ingenieurtechnik aus Weimar entwickelt
Bessere Ersatzteilversorgung für rotierende Maschinen
Authors: Smith Pharic , Hardock Siegbert 
Published: September 2019

AbstractDie jüngsten Fortschritte in der Konstruktion und Herstellung von Ersatzteilen haben den Zeitaufwand für die Produktion von Teilen für Reparatur und geplanten Austausch reduziert. Digitalisierung und neue Fertigungstechniken ermöglichen stark verkürzte Lieferfristen. Zwei Experten von Sulzer Pumpen berichten, was heutzutage möglich ist.
ECG changes after percutaneous edge‐to‐edge mitral valve repair
Authors: Bo Hou , Heinzmann David , Grasshoff Christian , Rosenberger Peter , Schlensak Christian , Gawaz Meinrad , Schreieck Jürgen , Langer Harald F. , Patzelt Johannes , Seizer Peter 
Published: September 2019

ABSTRACTBackgroundMitral regurgitation (MR) has a severe impact on hemodynamics and induces severe structural changes in the left atrium. Atrial remodeling is known to alter excitability and conduction in the atrium facilitating atrial fibrillation and atrial flutter. PMVR is a feasible and highly effective procedure to reduce MR in high‐risk patients, which are likely to suffer from atrial rhythm disturbances. So far, electroanatomical changes after PMVR have not been studied.HypothesisIn the current study, we investigated changes in surface electrocardiograms (ECGs) of patients undergoing PMVR for reduction of MR.MethodsWe evaluated 104 surface ECGs from patients in sinus rhythm undergoing PMVR. P wave duration, P wave amplitude, PR interval, QRS duration, QRS axis, and QT interval were evaluated before and after PMVR and at follow‐up.ResultsWe found no changes in QRS duration, QRS axis, and QT interval after successful PMVR. However, P wave duration, amplitude, and PR interval were significantly decreased after reduction of MR through PMVR (P < .05, respectively).ConclusionThe data we provide offers insight into changes in atrial conduction after reduction of MR using PMVR in patients with sinus rhythm.
Combination weighted clustering algorithms in cognitive radio networks
Authors: Li Xiaoyan , Lv Zhigang , Wang Peng , Sun Mengyu , Qiao Mengyu 
Published: September 2019

SummaryThe topology of the distributed cognitive radio network is volatile as influenced by the behavior of primary users, and this condition leads to the large communication overhead and low utilization of spectrum resources. A combination weighted clustering algorithm is proposed in the study to reduce the communication overhead of the distributed cognitive network and maintain the stability of the network structure. First, a clustering algorithm considering the available channel, geographic location, and experienced data (used for collecting the behavior of secondary users (SUs) in the network and the evaluation on it) of SUs is put forward through analyzing the characteristics of the idle channels in cognitive network. Three factors, namely, average channel capacity, stability, and channel quality, are converted into quantifiable values. The cluster head is determined on the basis of the three factors. Then, the cluster members and gateway nodes are determined using the weighting formula and the location information of the cluster head. Results show that the proposed clustering algorithm can generate 15% more clusters than other algorithms and reduce 40% of network communication overhead when the transmission distance between cognitive users and the channel number change. Thus, the stability of the cluster structure is maintained and the communication overhead is decreased. This study provides references for the construction of the stable distributed cognitive network.
Hybrid‐based novel approach for resource scheduling using MCFCM and PSO in cloud computing environment
Authors: Nanjappan Manikandan , Albert Pravin 
Published: September 2019

SummaryCloud computing is a growing environment. Many of the users are interested to outsource their data in cloud; however, load balancing in cloud is still at risk. Resource allocation plays a major role in load balancing. In this scheduling problem, independent task in cloud computing can allocate resource by the summary of modified canopy fuzzy c‐means algorithm (MCFCMA). To allocate task to their corresponding resource, particle swarm‐based optimization algorithm (PSO) is used. In proposed scheme, first independent task selected based on load feed‐back, cluster the requested task using MCFCMA and schedule task to each virtual machine. VM selects parallel execution in virtual machine manager. Calculate feature value using PSO algorithm. Allocate resource to the task. Since our proposed system selects resource based on parallel execution, it reduces load balancing in Cloud Quantum Computation (CQC). The proposed system overcomes issues in load balancing and load scheduling; this can be proved by its precision and privacy calculation.
RETRACTED: Evolution from ancient medication to human‐centered Healthcare 4.0: A review on health care recommender systems
Authors: Sharma Deepika , Singh Aujla Gagangeet , Bajaj Rohit 
Published: September 2019

SummaryThe evolution of intelligent and data‐driven systems has pushed for the tectonic transition from ancient medication to human‐centric Healthcare 4.0. The rise of Internet of Things, Internet of Systems, and wireless body area networks has endowed the health care ecosystem with a new digital transformation supported by sophisticated machine learning and artificial intelligence algorithms. Under this umbrella, health care recommendation systems have emerged as a driver for providing patient‐centric personalized health care services. Recommendation systems are automatic systems that derive the decisions on the basis of some valid input parameters and vital health information collected through wearable devices, implantable equipments, and various sensor. Therefore, to understand the state‐of‐the‐art developments in the health care ecosystem, this paper provides a comprehensive survey on health care recommendation systems and the associated paradigms. This survey starts from the ancient health care era and move toward the Healthcare 4.0 in a phased manner. The road map from Healthcare 1.0 to Healthcare 4.0 is analyzed to highlight different technology verticals supporting the digital transformation. This study also provides the systematic review of the health care systems, the types of health care systems, and the recommender systems. Moreover, a deep analysis of health care recommender systems and its types is also presented. Finally, the open issues and challenges associated with the adaption and implementation of human‐centric Healthcare 4.0 ecosystem are discussed. This is provided to find out the possible research questions and gaps so that the corresponding solutions could be developed in the near future.
Impaired theory of mind in unaffected first‐degree relatives of patients with anorexia nervosa
Authors: Tapajóz Fernanda , Soneira Sebastian , Catoira Natalia , Aulicino Alfredo , Allegri Ricardo F. 
Published: September 2019

AbstractObjectivePrevious studies have shown theory of mind (ToM) is affected in patients with anorexia nervosa (AN). There has also been growing interest in the study of endophenotypes in psychiatric disorders, since they allow better understanding of genetic mechanisms underlying different conditions, making them potential targets for future treatment. The goal of this study was to investigate whether ToM inefficiencies observed in patients with AN, are shared by unaffected first‐degree relatives.MethodPerformance on two ToM tasks (Reading the Mind in the Eyes and Faux Pas Test) were compared in 17 unaffected first‐degree relatives of AN patients and in 17 healthy individuals matched for age and level of education. Depression, anxiety, obsessive compulsive, and eating disorder symptoms were also assessed and correlated with ToM and clinical/demographic variables.ResultsSignificant differences between groups were observed in all ToM tasks, with relatives of AN patients showing poorer performance. ToM assessment did not correlate with any clinical or demographic variable.ConclusionsThe preliminary results of this study suggest unaffected first‐degree relatives of AN patients display similar patterns of difficulty in ToM as reported previously for AN patients, supporting the hypothesis that ToM inefficiencies are a familial trait in this condition.
Analysis and application of the piezoelectric energy harvester on light electric logistics vehicle suspension systems
Authors: Zhao Zhen , Wang Tie , Shi Jinhong , Zhang Baifu , Zhang Ruiliang , Li Meng , Wen Yonggang 
Published: September 2019

AbstractVehicles are subject to a variety of road unevenness and random road excitations that potentially cause the vehicle to undergo a significant amount of energy dissipation, while compromising energy efficiency. This paper focuses on designing a novel piezoelectric energy harvester and aims to assess the energy harvesting potential, from the vehicle suspension, under random and pulse road excitations. To describe the energy harvesting process, a dual‐mass suspension system vibration model of a light electric logistics vehicle, equipped with a piezoelectric energy harvester, is developed. Various parameters, such as driving speed, ratio of the moment arms of the lever, and piezoelectric material cross‐sectional area, are included in the model, for basic harvesting energy. The root mean square (RMS) value of harvested power, in the case of random road, is up to 18.83 W, while the maximum respective value, in the case of pulse road, is 102.24 W and is obtained at 30 km/h. The harvested electricity is very valuable and useful, as it can be used to power automotive electrical equipment. The results of this paper provide an important reference frame for future research, related to energy harvesting from vehicle suspension.
The Effects of Natural Suspended Solids on Copper Toxicity to the Cardinal Tetra in Amazonian River Waters
Authors: Crémazy Anne , Wood Chris M. , Smith D. Scott , Val Adalberto L. 
Published: September 2019

Abstract
The aim of the present study was to characterize the effects of particles on metal aquatic toxicity in a tropical system. To this end, we investigated the effects of natural suspended solids on copper (Cu) geochemistry and acute toxicity to the cardinal tetra (Paracheirodon axelrodi), in 2 Amazonian rivers with different total suspended solids (TSS) levels: the Rio Negro (low TSS ~ 8 mg L–1) and the Rio Solimões (high TSS ~ 70 mg L–1). The effect of particles on Cu aqueous geochemistry was assessed by measuring total, dissolved, and free ionic Cu concentrations in filtered (&lt;0.45 μm) and unfiltered waters. Furthermore, acute Cu toxicity to fish was assessed in both filtered and unfiltered waters, by measuring physiological net fluxes of Na+, Cl–, K+, and total ammonia (in both river waters) and 96-h fish mortality (in Rio Solimões only). The particles in the Rio Negro were not abundant enough to play a significant role in our study. On the other hand, the Rio Solimões particles bound approximately 70% of total aqueous Cu in our tests. In agreement with bioavailability-based models, this decrease in dissolved (and free ionic) Cu concentration decreased Cu lethality in the 96-h toxicity tests. In the physiological measurements, the best evidence of particle protection was the total alleviation of Cu-induced Cl– losses. These flux tests also suggested that the particles themselves may negatively affect Na+ balance in the fish. Overall, the present study supports the use of bioavailability concepts to account for the role of natural suspended solids on metal biological effects in the Amazon River basin. Environ Toxicol Chem 2019;38:2708–2718. © 2019 SETAC
Abstract
Effects of suspended solids on copper acute toxicity to the cardinal tetra.
Embryonic Exposure to 2,2′,3,5′,6-pentachlorobiphenyl (PCB-95) Causes Developmental Malformations in Zebrafish
Authors: Ranasinghe Prabha , Thorn Robert J. , Seto Renee , Creton Robbert , Bridges William C. , Chapman Susan C. , Lee Cindy M. 
Published: September 2019

Abstract
2,2′,3,5′,6-Pentachlorobiphenyl (PCB-95) is an environmental neurotoxicant. There is accumulated evidence that some neurotoxic effects of PCB-95 are caused by increased spontaneous Ca2+ oscillations in neurons resulting from modifying ryanodine receptors (RyR) in calcium-releasing channels. However, there are large gaps in explaining brain and other developmental malformations on embryonic PCB-95 exposure. In the present study, we address those deficiencies by studying the toxic effects of PCB-95 using zebrafish as an ontogenetic model. To characterize these effects, zebrafish embryos with intact chorions were exposed to 4 different concentrations of PCB-95 (0.25, 0.5, 0.75, and 1 ppm) for 3 consecutive days. The controls were maintained in 0.5 × E2 medium or egg water and in 0.1% (v/v) dimethyl sulfoxide (DMSO)/0.5 × E2 medium or egg water. PCB-95-treated groups showed dose-dependent decreases in survival and hatching rates, with increased rates of developmental malformations when compared to controls. These include morphological malformations, brain cell necrosis, and smaller eye sizes at 5 d post fertilization. These data suggest potential mechanisms underlying the abnormal behavior observed in a visual stimulus assay. The present study provides insight into PCB-95-induced developmental toxicity and supports the use of the zebrafish model in understanding the effects of PCB-95 exposure. Environ Toxicol Chem 2019;39:162–170. © 2019 SETAC