bluuebunny/crossref_metadata_2025_split huggingface dataset:
Design and Construction of Hybrid Microcapsules with Higher‐Order Structure and Multiple Functions
Authors: Wu Guangyu , Wang Lei , Zhou Pei , Wen Ping , Ma Chao , Huang Xin , Huang Yudong 
Published: December 2017

AbstractThe construction of inorganic‐protein hybrid microcapsules by using bovine serum albumin, metal ion clusters, and poly (N‐isopropylacrylamide) nanoconjugates as building blocks is presented. These microcapsules have robust membranes, which can keep their spherical morphology. They support interfacial catalytic activity by the ion clusters on their surface, and can be used as a platform to immobilize enzyme on the interface of oil/water to increase the diversity and efficiency of catalysis. These microcapsules also act as a container to make materials away from bacteria when existing silver clusters on the membrane. The obtained results highlight the construction of these microcompartments. These novel microcompartments can provide some new opportunities in bottom‐up synthetic biology, bioinspired microstorage/ microreactor, and drug/gene delivery in the future.
High Discharge Energy Density at Low Electric Field Using an Aligned Titanium Dioxide/Lead Zirconate Titanate Nanowire Array
Authors: Zhang Dou , Liu Weiwei , Guo Ru , Zhou Kechao , Luo Hang 
Published: December 2017

AbstractPolymer‐based capacitors with high energy density have attracted significant attention in recent years due to their wide range of potential applications in electronic devices. However, the obtained high energy density is predominantly dependent on high applied electric field, e.g., 400–600 kV mm−1, which may bring more challenges relating to the failure probability. Here, a simple two‐step method for synthesizing titanium dioxide/lead zirconate titanate nanowire arrays is exploited and a demonstration of their ability to achieve high discharge energy density capacitors for low operating voltage applications is provided. A high discharge energy density of 6.9 J cm−3 is achieved at low electric fields, i.e., 143 kV mm−1, which is attributed to the high relative permittivity of 218.9 at 1 kHz and high polarization of 23.35 µC cm−2 at this electric field. The discharge energy density obtained in this work is the highest known for a ceramic/polymer nanocomposite at such a low electric field. The novel nanowire arrays used in this work are applicable to a wide range of fields, such as energy harvesting, energy storage, and photocatalysis.
Carbon Nanofiber versus Graphene‐Based Stretchable Capacitive Touch Sensors for Artificial Electronic Skin
Authors: Cataldi Pietro , Dussoni Simeone , Ceseracciu Luca , Maggiali Marco , Natale Lorenzo , Metta Giorgio , Athanassiou Athanassia , Bayer Ilker S. 
Published: December 2017

AbstractStretchable capacitive devices are instrumental for new‐generation multifunctional haptic technologies particularly suited for soft robotics and electronic skin applications. A majority of elongating soft electronics still rely on silicone for building devices or sensors by multiple‐step replication. In this study, fabrication of a reliable elongating parallel‐plate capacitive touch sensor, using nitrile rubber gloves as templates, is demonstrated. Spray coating both sides of a rubber piece cut out of a glove with a conductive polymer suspension carrying dispersed carbon nanofibers (CnFs) or graphene nanoplatelets (GnPs) is sufficient for making electrodes with low sheet resistance values (≈10 Ω sq−1). The electrodes based on CnFs maintain their conductivity up to 100% elongation whereas the GnPs‐based ones form cracks before 60% elongation. However, both electrodes are reliable under elongation levels associated with human joints motility (≈20%). Strikingly, structural damages due to repeated elongation/recovery cycles could be healed through annealing. Haptic sensing characteristics of a stretchable capacitive device by wrapping it around the fingertip of a robotic hand (ICub) are demonstrated. Tactile forces as low as 0.03 N and as high as 5 N can be easily sensed by the device under elongation or over curvilinear surfaces.
Dual Anion–Cation Reversible Insertion in a Bipyridinium–Diamide Triad as the Negative Electrode for Aqueous Batteries
Authors: Perticarari Sofia , Sayed‐Ahmad‐Baraza Yuman , Ewels Chris , Moreau Philippe , Guyomard Dominique , Poizot Philippe , Odobel Fabrice , Gaubicher Joël 
Published: December 2017

AbstractAqueous batteries are an emerging candidate for low‐cost and environmentally friendly grid storage systems. Designing such batteries from inexpensive, abundant, recyclable, and nontoxic organic active materials provides a logical step toward improving both the environmental and economic impact of these systems. Herein the first ever battery material that works with simultaneous uptake and release of both cations and anions is proposed by coupling p‐type (bipyridinium) and n‐type (naphthalene diimide) redox moieties. It represents one of a new family of electrode materials which demonstrates an optimal oxidation potential (−0.47 V vs saturated calomel electrode), extremely fast kinetics, a highly competitive capacity (63 mA h g−1 at 4C), and cyclability in both neutral Na+ and Mg2+ electrolytes of molar range concentration. Through a combination of UV–vis spectroelectrochemistry, electrochemical quartz‐crystal microbalance, Operando synchrotron‐X‐ray diffraction, and density functional theory calculations a novel dual cation/anion insertion mechanism was proven and rationalized. Based on these findings, this innovative p/n‐type product may well provide a viable option for use as a negative electrode material, thereby promoting the design of cutting‐edge, low‐cost, rocking‐chair dual‐ion aqueous batteries.
Revealing Pseudocapacitive Mechanisms of Metal Dichalcogenide SnS2/Graphene‐CNT Aerogels for High‐Energy Na Hybrid Capacitors
Authors: Cui Jiang , Yao Shanshan , Lu Ziheng , Huang Jian‐Qiu , Chong Woon Gie , Ciucci Francesco , Kim Jang‐Kyo 
Published: December 2017

AbstractSnS2 nanoplatelet electrodes can offer an exceptionally high pseudocapacitance in an organic Na+ ion electrolyte system, but their underlying mechanisms are still largely unexplored, hindering the practical applications of pseudocapacitive SnS2 anodes in Na‐ion batteries (SIBs) and Na hybrid capacitors (SHCs). Herein, SnS2 nanoplatelets are grown directly on SnO2/C composites to synthesize SnS2/graphene‐carbon nanotube aerogel (SnS2/GCA) by pressurized sulfidation where the original morphology of carbon framework is preserved. The composite electrode possessing a large surface area delivers a remarkable specific capacity of 600.3 mA h g−1 at 0.2 A g−1 and 304.8 mA h g−1 at an ultrahigh current density of 10 A g−1 in SIBs. SHCs comprising a SnS2/GCA composite anode and an activated carbon cathode present exceptional energy densities of 108.3 and 26.9 W h kg−1 at power densities of 130 and 6053 W kg−1, respectively. The in situ transmission electron microscopy and the density functional theory calculations reveal that the excellent pseudocapacitance originates from the combination of Na adsorption on the surface/Sn edge of SnS2 nanoplatelets and ultrafast Na+ ion intercalation into the SnS2 layers.
Ibrutinib discontinuation in Waldenström macroglobulinemia: Etiologies, outcomes, and IgM rebound
Authors: Gustine Joshua N. , Meid Kirsten , Dubeau Toni , Severns Patricia , Hunter Zachary R. , Guang Yang , Xu Lian , Treon Steven P. , Castillo Jorge J. 
Published: December 2017

AbstractIbrutinib is the first approved therapy for symptomatic patients with Waldenström macroglobulinemia (WM). The reasons for discontinuing ibrutinib and subsequent outcomes have not been previously evaluated in WM patients. We therefore conducted a retrospective review of 189 WM patients seen at our institution who received treatment with ibrutinib, of whom 51 (27%) have discontinued therapy. Reasons for discontinuation include: disease progression (n = 27; 14%), toxicity (n = 15; 8%), nonresponse (n = 5; 3%), and other unrelated reasons (n = 4; 2%). The cumulative incidence of ibrutinib discontinuation at 12, 24, 36, and 48 months from treatment initiation was 22%, 26%, 35%, and 43%, respectively. A baseline platelet count ≤100 K/µL and presence of tumor CXCR4 mutations were independently associated with 4‐fold increased odds of ibrutinib discontinuation. An IgM rebound (≥25% increase in serum IgM) was observed in 37 patients (73%) following ibrutinib discontinuation and occurred within 4 weeks for nearly half of patients. The response rate to salvage therapy was 71%; responses were higher in patients without an IgM rebound and when salvage therapy was initiated within 2 weeks of stopping ibrutinib. Patients who discontinued ibrutinib due to disease progression versus nonprogression events had significantly shorter overall survival (21 versus 32 months; P = .046). Response to salvage therapy was associated with an 82% reduction in the risk of death following ibrutinib discontinuation. WM patients who discontinue ibrutinib require close monitoring, and continuation of ibrutinib until the next therapy should be considered to maintain disease control.
Stable Palladium Hydride Catalyzed Intermolecular Hydroamination of Vinylarenes
Authors: Kang On‐Yu , Kim Bo Eun , Park Seong Jun , Ryu Do Hyun , Lim Hwan Jung 
Published: December 2017

AbstractA stable palladium hydride catalyzed intermolecular hydroamination reaction for vinylarenes has been developed. The metal hydride catalyst was prepared by treating PdLCl2 (L=ligand) with AgOTf (OTf=trifluoromethanesulfonate) and (EtO)2MeSiH as the hydride source. The optimized reaction conditions were employed for the hydroamination of various styrenes with anilines, sulfonamides, and indoles. Chiral ligands such as 2,2′‐bis(diphenylphosphino)‐1,1′‐binaphthyl (BINAP) gave enantioenriched products in good to excellent yields.
Transition‐Metal‐Free Indole C3 Sulfenylation by KIO3 Catalysis
Authors: Bai Feicheng , Zhang Shikun , Wei Li , Liu Yunyun 
Published: December 2017

AbstractA transition‐metal‐free catalytic protocol for the synthesis of 3‐sulfenylated indoles via indole C−H sulfenylation is reported. By using simple inorganic iodine salt KIO3 as the sole catalyst, the sulfenylated indole products are easily synthesized with good tolerance and satisfactory yield in DMSO/H2O.
Intensity‐Enhanced Apodization Effect on an Axially Illuminated Circular‐Column Particle‐Lens
Authors: Yue Liyang , Yan Bing , Monks James N. , Dhama Rakesh , Wang Zengbo , Minin Oleg V. , Minin Igor V. 
Published: December 2017

AbstractA particle can function as a refractive lens to focus a plane wave, generating a narrow, high intensive, weak‐diverging beam within a sub‐wavelength volume, known as the ‘photonic nanojet’. It is known that apodization method, in the form of an amplitude pupil‐mask centrally situated on a particle‐lens, can further reduce the waist of a photonic nanojet, however, it usually lowers the intensity at the focus due to blocking the incident light. In this paper, the anomalously intensity‐enhanced apodization effect was discovered for the first time via numerical simulation of focusing of the axially illuminated circular‐column particle‐lenses, and a greater than 100% peak intensity increase was realised for the produced photonic nanojets.
Potassium Amide‐Catalyzed Benzylic C−H Bond Addition of Alkylpyridines to Styrenes
Authors: Zhai Dan‐Dan , Zhang Xiang‐Yu , Liu Yu‐Feng , Zheng Lei , Guan Bing‐Tao 
Published: December 2017

AbstractThe benzylic functionalization of alkylpyridines is an important pathway for pyridine derivatives synthesis. The reaction partners, however, were mostly limited to highly reactive polar electrophiles. Herein, we report a potassium amide‐catalyzed selective benzylic C−H bond addition of alkylpyridines to styrenes. Potassium bis(trimethylsilyl)amide (KHMDS), a readily available Brønsted base, showed excellent catalytic activity and chemoselectivity. A series of alkylpyridine derivatives, including benzylic quaternary carbon substituted pyridines, were obtained in good to high yield. Preliminary mechanistic studies revealed that the deprotonation equilibrium is probably responsible for the excellent selectivity.
In Situ Optical Imaging of the Growth of Conjugated Polymer Aggregates
Authors: Yang Jaesung , Park Heungman , Kaufman Laura J. 
Published: December 2017

AbstractUnderstanding the mechanisms that contribute to conjugated polymer aggregate formation and growth may yield enhanced control of aggregate morphology and functional properties on the mesoscopic scale. In situ optical imaging of the growth of MEH‐PPV aggregates in real time in controlled swollen films shows that growth occurs through multiple mechanisms and is more complex than previously described. Direct evidence is provided for both Ostwald ripening and aggregate coalescence as operative modes of aggregate growth in solvent swollen films. These growth mechanisms have a distinct and strong impact on the evolution of morphological order of growing aggregates: while Ostwald ripening allows preservation of highly ordered morphology, aggregate coalescence occurs with no preferential orientation, leading to attenuation in degree of ordering.
Preparation of cellulose–graphene oxide aerogels with N‐methyl morpholine‐N‐oxide as a solvent
Authors: Zhou Shuang , Zhou Li , Li Ying , Xie Fei , Li He , Yang Hui , Li Wenjiang , Snyders Rony 
Published: December 2017

ABSTRACTCellulose–graphene oxide (GO) aerogel composites were successfully prepared from cellulose and GO dispersed in N‐methyl morpholine‐N‐oxide monohydrate, a nontoxic and environmentally friendly solvent, after a freeze‐drying process. Because of the strong interactions between the numerous oxygen‐containing groups located on the surface of GO and the functional groups of the cellulose molecules, the GO monolayers were well dispersed in the three‐dimensional porous structure of the cellulose aerogels. With the addition of 10 wt % GO, the swelling ratios and water contents of the composite cellulose–GO aerogels increased from 468 to 706% and from 82.4% to 87.6%, respectively. The corresponding maximum decomposition temperatures also increased from 335 to 353 °C with increasing GO content from 0 to 10%; this indicated that the thermal stability of the cellulose–GO aerogels was enhanced. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46152.
Polymer adhesion in heat‐treated nonwovens
Authors: Staszel Christopher , Yarin Alexander L. , Pourdeyhimi Behnam 
Published: December 2017

ABSTRACTPolymer adhesion and sintering in compound nonwovens was studied. Nonwovens containing a mixture of binding bi‐component (BICO) fibers embedded in a fibrous matrix were heated to melt the outer shell of BICO fibers and interlock the matrix to create stiff load‐bearing surfaces. It was found that stiffness depends on heat‐treatment regimes. In low‐temperature regimes, BICO fibers melt, but do not fully flow and encase the surrounding filler matrix. At sufficiently high temperatures, the shells of BICO fibers melt and flow which results in encasing the neighboring filler fibers. This results in an abrupt increase in the nonwoven stiffness which is independent of heat‐treatment temperature. At significantly high temperatures, the filler matrix fibers sinter to each other leading to a further increase in stiffness. The experiments were conducted with co‐polymers frequently used in the shells of BICO to demonstrate the interlocking mechanism characteristic of these compound nonwovens. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46165.
Modalanalyse von Monitoringdaten eines Sendeturms
Authors: Marwitz Simon , Zabel Volkmar , Könke Carsten 
Published: December 2017

AbstractIm Rahmen des DFG Graduiertenkollegs 1462 wurde an einem ca. 200 m hohen Sendeturm mit rotationssymmetrischem Querschnitt ein Monitoringsystem zur Erfassung von Schwingbeschleunigungen, Temperaturen und Windeinwirkungen installiert, welches über einen Zeitraum von zwei Jahren betrieben wurde. Die Auswertung der Schwingungsdaten erfolgte mithilfe einer automatisierten Output‐only‐Modalanalyse. In der vorliegenden Studie wurde die Stochastic‐Subspace‐Identification‐Methode in Verbindung mit einem automatischen, dreistufigen Clustering‐Algorithmus zur Identifikation der modalen Parameter und deren Varianzen verwendet.Es wurden Abhängigkeiten der modalen Parameter von den Umgebungsbedingungen unter Berücksichtigung der Unsicherheiten aller Datenpunkte ermittelt. Bei ideal rotationssymmetrischen Bauwerksquerschnitten treten alle Eigenschwingungen paarweise mit orthogonal zueinander stehenden Eigenformen auf. In realen Systemen ergeben sich aus diesen doppelten Eigenformen paarweise kombinierte Eigenformen mit eng beieinanderliegenden Eigenfrequenzen. Die Hauptschwingungsrichtungen dieser Eigenformen wurden ermittelt und in Beziehung zur Windrichtung betrachtet.
Protein‐engineering of chitosanase from Bacillus sp. MN to alter its substrate specificity
Authors: Regel Eva K. , Weikert Tobias , Niehues Anna , Moerschbacher Bruno M. , Singh Ratna 
Published: December 2017

AbstractPartially acetylated chitosan oligosaccharides (paCOS) have various potential applications in agriculture, biomedicine, and pharmaceutics due to their suitable bioactivities. One method to produce paCOS is partial chemical hydrolysis of chitosan polymers, but that leads to poorly defined mixtures of oligosaccharides. However, the effective production of defined paCOS is crucial for fundamental research and for developing applications. A more promising approach is enzymatic depolymerization of chitosan using chitinases or chitosanases, as the substrate specificity of the enzyme determines the composition of the oligomeric products. Protein‐engineering of these enzymes to alter their substrate specificity can overcome the limitations associated with naturally occurring enzymes and expand the spectrum of specific paCOS that can be produced. Here, engineering the substrate specificity of Bacillus sp. MN chitosanase is described for the first time. Two muteins with active site substitutions can accept N‐acetyl‐D‐glucosamine units at their subsite (−2), which is impossible for the wildtype enzyme.
Is Supply's Actual Contribution to Sustainable Development Strategic and Operational?
Authors: Tchokogué André , Nollet Jean , Merminod Nathalie , Paché Gilles , Goupil Véronique 
Published: December 2017

AbstractThis paper addresses the issue of how sustainable supply practices are actually used as a leverage for sustainable development (SD). In order to assess the level of sustainable supply management within an organization, the authors have reviewed the literature extensively and then developed a five‐step maturity model around five management dimensions. A qualitative exploratory approach based on two detailed case studies of organizations whose reputation for SD is recognized internationally has been used. This methodology allowed us to show (1) how sustainable supply practices could be used as a leverage for an organization's sustainable development approach and (2) that sustainable supply practices still have quite a distance to go with regards to the maturity model for sustainable supply, even in organizations that are often mentioned as leaders in the SD area. In these organizations, managers still emphasize environmental considerations, while neglecting practices that would make it possible to reach the three SD objectives simultaneously. Copyright © 2017 John Wiley & Sons, Ltd and ERP Environment
The Relationship between Organizational Culture and Energy Performance: A Municipal Energy Manager Level Study
Authors: Rizzi Francesco , Annunziata Eleonora , Frey Marco 
Published: December 2017

AbstractFor energy managers, finding personal meaning in the activities they are engaged in and gaining an identity in connection between energy efficiency and organizational goals is a necessary condition to mobilize passion and commitment, which in turn are fundamental to achieve organizational goals under tight budget constraints. Despite this, little is known about how municipalities, which are typical budget‐constrained organizations, can enhance the empowerment of employees with roles as energy managers. This paper draws from the literature on the person–organization fit in order to adapt and test the hypothesis that multiple dimensions of organizational culture are strong predictors of perceived managerial and technical energy performance. Data from 729 questionnaire responses from energy managers of Italian municipalities show that formalization, team orientation, innovation, centralization and reward systems are the key elements that enable energy managers to act as business partners instead of task managers. Causal relations are discussed and presented along with theoretical and policy implications that can provide inspiration also to private organizations. Copyright © 2017 John Wiley & Sons, Ltd and ERP Environment
Ventricular arrhythmias immediately following transcatheter pulmonary valve implantation: A cause for concern?
Authors: Simmons M. Abigail , Elder Robert W. , Shabanova Veronika , Hellenbrand William , Asnes Jeremy 
Published: December 2017

AbstractBackgroundTranscatheter pulmonary valve implantation (TPVI) has revolutionized the care of patients with congenital disorders of the right ventricular outflow tract (RVOT) and is increasingly being used in patients with native outflow tracts. This is the first study to specifically report the occurrence of ventricular arrhythmias in the immediate post‐TPVI period.Methods and ResultsMedical records of all adult and pediatric patients who underwent TPVI at our institution between May 1, 2011 and March 1, 2016, were reviewed for the presence of clinically significant ventricular arrhythmias occurring within 30 days of TPVI. We defined a clinically significant arrhythmia as any ventricular arrhythmia that led to hemodynamic instability, resulted in a change of dose or addition of a new anti‐arrhythmic medication, caused a delay in discharge, or was the primary reason for readmission. Seventy‐five patients, with a median age of 19 years (range 4–65 years), underwent TPVI. In total, 12 (16%) patients had a clinically significant ventricular arrhythmia within 30 days following TPVI. Patients with native outflow tracts were at higher risk of post‐TPVI arrhythmias than non‐native outflow tract (29% vs. 9%, P = 0.02, adjusted OR 4.8, 95%CI 1.2–20.2). There were no cases of hemodynamic compromise or sudden cardiac death. The arrhythmias were well controlled with beta‐blocker therapy.ConclusionIn this single center study, ventricular arrhythmias were common following TPVI, particularly in native outflow tract patients. However, the arrhythmias were generally benign and responded well to medical therapy when indicated. Long term therapy was often not needed.
Repeat MitraClip for early recurrent mitral regurgitation
Authors: Hachinohe Daisuke , Latib Azeem , Agricola Eustachio , Colombo Antonio 
Published: December 2017

AbstractTreatment for recurrent mitral regurgitation (MR) after MitraClip therapy remains a challenging issue. This study reports the efficacy of repeat MitraClip therapy for recurrent MR during the early phase after the index MitraClip procedure. We present a case series of four consecutive patients who underwent repeat MitraClip procedures for severe recurrent MR during the early phase. Partial clip detachment (PCD) was the suspected cause of recurrent MR in these cases. All patients received additional clip(s). PCD could be stabilized and MR grade improved in all cases compared with that before the second procedure. Repeat MitraClip procedures for recurrent MR due to PCD are feasible during the early phase. However, patients having PCD with paracommissural MR may not be good candidates for repeat MitraClip.