bluuebunny/crossref_metadata_2025_split huggingface dataset:
The energy‐based scaling of a thin current sheet: Case study
Authors: Sasunov Yu. L. , Khodachenko M. L. , Alexeev I. I. , Belenkaya E. S. , Gordeev E. I. , Kubyshkin I. V. 
Published: October 2015

AbstractThe influence of average plasma energy
on the half thickness ℓ of a thin current sheet (TCS) is investigated for three cases of TCSs crossings. The value of ℓ was estimated from the magnetic field data by means of Cluster observations. The obtained scaling values for TCSs,
, where ρT is the thermal Larmor radius, were compared with the scaling
, where
and T are the average plasma energy and the temperature of plasma, which assumes a specific dynamics (conservation of magnetic flux through the trajectory segment) of the current carriers. The comparison of
and Zμ shows a good agreement.
Deep inelastic scattering at the energy frontier
Authors: Klein Max 
Published: October 2015

An introduction is given to the physics with the Large Hadron electron Collider (LHeC), a new generation and collider exploring the accelerator energy frontier with a prospect to the FCC‐he. The LHeC is designed to become the finest new microscope for substructure of matter worldwide exploring new physics, and the next accelerator to study the Higgs boson, which will enable the LHC to be transformed into a precision physics facility of increased value.
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Optically Active Nanostructured ZnO Films
Authors: Duan Yingying , Han Lu , Zhang Jialiang , Asahina Shunsuke , Huang Zhehao , Shi Lin , Wang Bo , Cao Yuanyuan , Yao Yuan , Ma Liguo , Wang Cui , Dukor Rina K. , Sun Lu , Jiang Chun , Tang Zhiyong , Nafie Laurence A. , Che Shunai 
Published: October 2015

AbstractInorganic nanomaterials endowed with hierarchical chirality could open new horizons in physical theory and applications because of their fascinating properties. Here, we report chiral ZnO films coated on quartz substrates with a hierarchical nanostructure ranging from atomic to micrometer scale. Three levels of hierarchical chirality exist in the ZnO films: helical ZnO crystalline structures that form primary helically coiled nanoplates, secondary helical stacking of these nanoplates, and tertiary nanoscale circinate aggregates formed by several stacked nanoplates. These films exhibited optical activity (OA) at 380 nm and in the range of 200–800 nm and created circularly polarized luminescence centered at 510 nm and Raman OA at 50–1400 cm−1, which was attributed to electronic transitions, scattering, photoluminescent emission, and Raman scattering in a dissymmetric electric field. The unprecedented strong OA could be attributed to multiple light scattering and absorption‐enhanced light harvesting in the hierarchical structures.
Ruthenium Oxidase Catalysis for Site‐Selective C–H Alkenylations with Ambient O2 as the Sole Oxidant
Authors: Bechtoldt Alexander , Tirler Carina , Raghuvanshi Keshav , Warratz Svenja , Kornhaaß Christoph , Ackermann Lutz 
Published: October 2015

AbstractRuthenium(II) oxidase catalysis by direct dioxygen‐coupled turnover enabled step‐economical oxidative CH alkenylation reactions at ambient pressure. Versatile ruthenium(II) biscarboxylate catalysts displayed ample substrate scope and proved applicable to weakly coordinating and removable directing groups. The twofold CH functionalization strategy was characterized by exceedingly mild reaction conditions as well as excellent positional selectivity.
A Phosphole Oxide Based Fluorescent Dye with Exceptional Resistance to Photobleaching: A Practical Tool for Continuous Imaging in STED Microscopy
Authors: Wang Chenguang , Fukazawa Aiko , Taki Masayasu , Sato Yoshikatsu , Higashiyama Tetsuya , Yamaguchi Shigehiro 
Published: October 2015

AbstractThe development of stimulated emission depletion (STED) microscopy represented a major breakthrough in cellular and molecular biology. However, the intense laser beams required for both excitation and STED usually provoke rapid photobleaching of fluorescent molecular probes, which significantly limits the performance and practical utility of STED microscopy. We herein developed a photoresistant fluorescent dye C‐Naphox as a practical tool for STED imaging. With excitation using either a λ=405 or 488 nm laser in protic solvents, C‐Naphox exhibited an intense red/orange fluorescence (quantum yield ΦF>0.7) with a large Stokes shift (circa 5900 cm−1). Even after irradiation with a Xe lamp (300 W, λex=460 nm, full width at half maximum (FWHM)=11 nm) for 12 hours, 99.5 % of C‐Naphox remained intact. The high photoresistance of C‐Naphox allowed repeated STED imaging of HeLa cells. Even after recording 50 STED images, 83 % of the initial fluorescence intensity persisted.
Knoevenagel Adducts as Trimethylenemethane Dipole Surrogates
Authors: Vertesaljai Peter , Navaratne Primali V. , Grenning Alexander J. 
Published: October 2015

AbstractKnoevenagel adducts derived from readily available acetoxyacetone and malonic acid derivatives served as trimethylenemethane surrogates for formal 1,3‐difunctionalization through a sequence of selective γ‐deprotonation/α‐alkylation and palladium(0)‐catalyzed allylic alkylation. Herein, we report the discovery and development of a three‐component 1,3‐difunctionalization of Knoevenagel adducts as well as a unique palladium(0)‐catalyzed branch‐selective allylic alkylation.
Cycloamidination of Aminoalkenes with Nitriles: Synthesis of Substituted 2‐Imidazolines and Tetrahydropyrimidines
Authors: Huang Shujian , Shao Yinlin , Zhang Lixin , Zhou Xigeng 
Published: October 2015

AbstractThe first catalytic cycloamidination of aminoalkenes with nitriles has been achieved by using rare‐earth complexes. This reaction is equivalent to the desired intramolecular hydroamination of alkenylamidines, and allows a new direct access to substituted 2‐imidazolines and tetrahydropyrimidines in high yields under operationally simple reaction conditions. Moreover, the methodology is also efficient for synthesis of symmetric and unsymmetric bridged diimidazolines. Compared with the traditional stepwise‐mediated synthetic approaches, the present method avoids the use of additives and harsh reaction conditions, and thus leads to a completely different product distribution. Mechanistic data suggest that the reaction involves the initial NH activation by lanthanide complex followed by nitrile insertion into a LnN bond to form an amidinate lanthanide intermediate which undergoes the cyclization.
Guanidinium‐Induced Denaturation by Breaking of Salt Bridges
Authors: Meuzelaar Heleen , Panman Matthijs R. , Woutersen Sander 
Published: October 2015

AbstractDespite its wide use as a denaturant, the mechanism by which guanidinium (Gdm+) induces protein unfolding remains largely unclear. Herein, we show evidence that Gdm+ can induce denaturation by disrupting salt bridges that stabilize the folded conformation. We study the Gdm+‐induced denaturation of a series of peptides containing Arg/Glu and Lys/Glu salt bridges that either stabilize or destabilize the folded conformation. The peptides containing stabilizing salt bridges are found to be denatured much more efficiently by Gdm+ than the peptides containing destabilizing salt bridges. Complementary 2D‐infrared measurements suggest a denaturation mechanism in which Gdm+ binds to side‐chain carboxylate groups involved in salt bridges.
Lewis Superacidic Ionic Liquids with Tricoordinate Borenium Cations
Authors: Coffie Sesime , Hogg James M. , Cailler Lucie , Ferrer‐Ugalde Albert , Murphy Richard W. , Holbrey John D. , Coleman Fergal , Swadźba‐Kwaśny Małgorzata 
Published: October 2015

AbstractThe first examples of ionic liquids based on borenium cations, [BCl2L]+, are reported. These compounds form highly Lewis acidic liquids under solvent‐free conditions. Their acidity was quantified by determining the Gutmann acceptor number (AN). Extremely high ANs were recorded (up to AN=182, δ31P=120 ppm), demonstrating that these borenium ionic liquids are the strongest Lewis superacids reported to date, with the acidity enhanced by the ionic liquid environment.
The Interaction of Water with Free Mn4O4+ Clusters: Deprotonation and Adsorption‐Induced Structural Transformations
Authors: Lang Sandra M. , Bernhardt Thorsten M. , Kiawi Denis M. , Bakker Joost M. , Barnett Robert N. , Landman Uzi 
Published: October 2015

AbstractAs the biological activation and oxidation of water takes place at an inorganic cluster of the stoichiometry CaMn4O5, manganese oxide is one of the materials of choice in the quest for versatile, earth‐abundant water splitting catalysts. To probe basic concepts and aid the design of artificial water‐splitting molecular catalysts, a hierarchical modeling strategy was employed that explores clusters of increasing complexity, starting from the tetramanganese oxide cluster Mn4O4+ as a molecular model system for catalyzed water activation. First‐principles calculations in conjunction with IR spectroscopy provide fundamental insight into the interaction of water with Mn4O4+, one water molecule at a time. All of the investigated complexes Mn4O4(H2O)n+ (n=1–7) contain deprotonated water with a maximum of four dissociatively bound water molecules, and they exhibit structural fluxionality upon water adsorption, inducing dimensional and structural transformations of the cluster core.
Neural correlates of different self domains
Authors: Araujo Helder F. , Kaplan Jonas , Damasio Hanna , Damasio Antonio 
Published: October 2015

AbstractIntroductionThe neural substrates of states devoted to processing self‐related information (“self‐related states”) remain not fully elucidated. Besides the complexity of the problem, there is evidence suggesting that self‐related states vary according to the information domain being considered. Here, we investigated brain correlates for self‐related states concerning historical aspects of one's life (autobiographical self), and one's ongoing body status (core self). We focused on memory‐related regions, body‐related regions, CMSs (cortical midline structures), and ICs (insular cortices).MethodsThis was a block‐design fMRI study contrasting brain activity for core self (interoception and exteroception) and autobiographical self (personality traits and biographic facts) information domains. It involved 19 participants, who answered questions about each domain (four conditions).ResultsAll conditions appeared to engage the regions of interest. Nonetheless, autobiographical self compared with core self showed greater activity in memory‐related regions (e.g., hippocampus), MPFC (medial prefrontal cortex), superior PMC (posteromedial cortex), and anterior ICs. Core self compared with autobiographical self was associated with greater activity in body‐related regions (e.g., somatosensory cortices, and EBA [extrastriate body area]), superior PMC, and posterior ICs. In addition, (1) facts compared with traits showed greater activity in body‐related regions, memory‐related regions, MPFC, and PMC; (2) traits compared with facts were associated with greater activity in the posterior part of the anterior cingulate cortex; (3) interoception compared with exteroception was associated with greater activity in body‐related regions (e.g. postcentral gyrus), memory‐related regions, MPFC, inferior PMC and ICs; (4) exteroception compared with interoception showed greater activity in some body‐related regions (e.g., premotor cortices and EBA) and superior PMC.ConclusionsThe results support the notion that the neural correlates of self‐related states depend on the information domain. Those states seem distinguishable in terms of activity in memory‐related and body‐related regions, and activity in regions that have been associated with self processes (CMSs and the ICs).
The moderating role of consumer entitlement on the relationship of value with customer satisfaction
Authors: Zboja James J. , Laird Mary Dana , Bouchet Adrien 
Published: October 2015

AbstractThis research provides an extension of Oliver's (1980) expectancy disconfirmation model of satisfaction by examining the moderating role of consumer entitlement in the relationships between service quality and perceived value with customer satisfaction. Using a sample of season ticket holders of the National Hockey League franchise in the southeastern USA (n = 234), we found that consumer entitlement moderates the relationship of value with satisfaction, such that the impact of consumer‐perceived service value on satisfaction is mitigated for highly entitled consumers. That is, the positive value–satisfaction relationship is stronger for individuals low in consumer entitlement. This finding suggests that highly entitled consumers' satisfaction judgments are dominated by expectations, while less entitled consumers rely more on disconfirmation assessments. Strengths, limitations, suggestions for future research, and practical implications are offered. Copyright © 2015 John Wiley & Sons, Ltd.
How character presence in advergames affects brand attitude and game performance: A cross‐cultural comparison
Authors: Choi Yung Kyun , Yoon Sukki , Taylor Charles R. 
Published: October 2015

AbstractAdvertising within videogames has grown in importance over the last few years. This research investigates the impact of character presence in advergames on brand attitude and game performance, and how such effects depend on national culture. A total of 130 students participated in an experiment conducted in the US and Korea. Results show that when the featured brand in an advergame was a publicly consumed product, character's presence (vs. absence) had a positive effect on attitude toward the brand and gaming performance, but when the featured brand was a privately consumed product, character's presence had a negative effect on these variables. Furthermore, the emergence of the character–product interaction effect was dependent on national culture. Theoretical and practical implications are provided. Copyright © 2015 John Wiley & Sons, Ltd.
Understanding rare comorbidities in TAVR
Authors: Block Peter C. 
Published: October 2015

Key Points

There seems to be an early morbidity and mortality advantage to TAVR in patients with chronic liver disease.
Patients with Childs A and B CLD can be treated with TAVR but we know little about TAVR for sicker patients.
Technical issues associated with TAVR (the use of transesophageal echocardiography (TEE) for example) have to be weighed in CLD patients with esophageal varices.
Too much data, and still not enough information
Authors: Reilly John 
Published: October 2015

Key Points

This analysis of the National Inpatient Sample Database found that Medicare and Medicaid patients with peripheral arterial disease had higher rates of amputation and in‐hospital mortality as compared to private pay and Health Maintenance Organization (HMO) patients
Raising awareness of disparities of outcomes among vulnerable populations should lead all healthcare providers to examine gaps in care.
Administrative databases are necessarily limited. Prospective registries should be developed to demonstrate that early detection of PAD with simple, cost effective tests like the ankle brachial index can improve outcomes.
“I see the light!” trans‐carotid balloon valvuloplasty in neonates and small infants utilizing continuous trans‐esophageal echo guidance
Authors: Lucas Victor 
Published: October 2015

Key Points

Continuous echo guidance may add to the safety of neonatal aortic balloon valvuloplasty
Trans‐carotid access is an alternative route to aortic balloon valvuloplasty in neonates
Proof of preferred procedure (surgical or catheter based), procedure setting, and access site remains elusive as the disease is infrequent and single center experience remains small
Design of Lead(II) Metal–Organic Frameworks Based on Covalent and Tetrel Bonding
Authors: Servati Gargari Masoumeh , Stilinović Vladimir , Bauzá Antonio , Frontera Antonio , McArdle Patrick , Van Derveer Donald , Ng Seik Weng , Mahmoudi Ghodrat 
Published: October 2015

AbstractThree solid materials, [Pb(HL)(SCN)2]⋅CH3OH (1), [Pb(HL)(SCN)2] (2), and [Pb(L)(SCN)]n (3), were obtained from Pb(SCN)2 and an unsymmetrical bis‐pyridyl hydrazone ligand that can act both as a bridging and as a chelating ligand. In all three the lead center is hemidirectionally coordinated and is thus sterically optimal for participation in tetrel bonding. In the crystal structures of all three compounds, the lead atoms participate in short contacts with thiocyanate sulfur or nitrogen atoms. These contacts are shorter than the sums of the van der Waals radii (3.04–3.47 Å for Pb⋅⋅⋅S and 3.54 Å for Pb⋅⋅⋅N) and interconnect the covalently bonded units (monomers, dimers, and 2D polymers) into supramolecular assemblies (chains and 3D structures). DFT calculations showed these contacts to be tetrel bonds of considerable energy (6.5–10.5 kcal mol−1 for Pb⋅⋅⋅S and 16.5 kcal mol−1 for Pb⋅⋅⋅N). A survey of structures in the CSD showed that similar contacts often appear in crystals of PbII complexes with regular geometries, which leads to the conclusion that tetrel bonding plays a significant role in the supramolecular chemistry of PbII.
Mesoporous Foam TiO2 Nanomaterials for Effective Hydrogen Production
Authors: Krishnappa Manjunath , Souza Virgínia S. , Ganganagappa Nagaraju , Scholten Jackson D. , Teixeira Sérgio R. , Dupont Jairton , Thippeswamy Ramakrishnappa 
Published: October 2015

AbstractHydrolysis of TiCl4 in a diether‐functionalized imidazolium ionic liquid (IL), namely 1‐methyl‐3‐[2‐(2‐methoxy(ethoxy)ethyl]imidazolium methane sulfonate (M(MEE)I⋅CH3SO3), results in a heterostructured organic/inorganic and sponge‐like porous TiO2 material. The thermal treatment (300 °C) followed by calcination (500 °C) affords highly porous TiO2. The characterization of the obtained samples (with and without IL, before and after calcination) by XRD, SEM, and TEM reveals TiO2 anatase crystalline phases and irregular‐shaped particles with different porous structures. These hierarchical‐structured mesoporous TiO2 nanomaterials were employed as efficient photocatalysts in the water‐splitting process, yielding up to 1304 μmol g−1 on hydrogen production.
Synthesis of Long, Palladium End‐Capped Polyynes through the Use of Asymmetric 1‐Iodopolyynes
Authors: Pigulski Bartłomiej , Gulia Nurbey , Szafert Sławomir 
Published: October 2015

AbstractThe synthesis of a unique series of long, asymmetric 1‐iodopolyynes (1‐CnI and 2‐CnI) with the sp‐hybridized carbon chain up to a decapentayne is reported. These compounds were then used as substrates in reactions with Pd(PPh3)4 leading to another series of palladium end‐capped polyynes, which were unstable in solution. Organometallic octatetraynes 1‐C8[Pd]I, 2‐C8[Pd]I, and decapentayne 1‐C10[Pd]I are palladium end‐capped polyyne compounds with the longest carbon chains reported so far. All the complexes as well as their organic precursors were fully characterized by NMR, HRMS(ESI), IR, TGA‐DTA, and UV/Vis techniques, and the X‐ray crystal structures of two silyl‐protected precursors and one palladium complex are presented. The synthetic approach for palladium species is envisioned as a general route for the synthesis of labile organometallic polyynes.
Ultrathin g‐C3N4 Nanosheets Coupled with AgIO3 as Highly Efficient Heterostructured Photocatalysts for Enhanced Visible‐Light Photocatalytic Activity
Authors: Li Yunfeng , Li Kai , Yang Yang , Li Leijiao , Xing Yan , Song Shuyan , Jin Rongchao , Li Mei 
Published: October 2015

AbstractThe photocatalytic activity of graphite‐like carbon nitride (g‐C3N4) could be enhanced by heterojunction strategies through increasing the charge‐separation efficiency. As a surface‐based process, the heterogeneous photocatalytic process would become more efficient if a larger contact region existed in the heterojunction interface. In this work, ultrathin g‐C3N4 nanosheets (g‐C3N4‐NS) with much larger specific surface areas are employed instead of bulk g‐C3N4 (g‐C3N4‐B) to prepare AgIO3/g‐C3N4‐NS nanocomposite photocatalysts. By taking advantage of this feature, the as‐prepared composites exhibit remarkable performances for photocatalytic wastewater treatment under visible‐light irradiation. Notably, the optimum photocatalytic activity of AgIO3/g‐C3N4‐NS composites is almost 80.59 and 55.09 times higher than that of pure g‐C3N4‐B towards the degradation of rhodamine B and methyl orange pollutants, respectively. Finally, the stability and possible photocatalytic mechanism of the AgIO3/g‐C3N4‐NS system are also investigated.
ChemInform Abstract: Abrupt Symmetry Decrease in the ThT2Al20 Alloys (T = 3d Transition Metal).
Authors: Uziel A. , Bram A. I. , Venkert A. , Kiv A. E. , Fuks D. , Meshi L. 
Published: October 2015

AbstractThM2Al20 (M: Ti, V, Mn, Fe) alloys are prepared by arc melting of the elements followed by annealing (Ta foil in quartz capsule under Ar, 800 °C, 3 weeks).
ChemInform Abstract: From the Ternary Eu(Au/In)2 and EuAu4(Au/In)2 with Remarkable Au/In Distributions to a New Structure Type: The Gold‐Rich Eu5Au16(Au/In)6 Structure.
Authors: Steinberg Simon , Card Nathan , Mudring Anja‐Verena 
Published: October 2015

AbstractThe ternary compounds EuAu0.46In1.54 (I), EuAu4.75In1.25 (II), EuAu4.93In1.07, EuAu5.03In0.97, and Eu5Au17.29In4.71 (III) are prepared from the elements (Ta tubes, 800 °C for 12 h and annealing at 300 °C for 3 d).
ChemInform Abstract: New Ultraviolet B Emission from Gadolinium Activated BaZrO3 Phosphor — An Electron Paramagnetic Resonance and Optical Study.
Authors: Singh Vijay , Sivaramaiah G. , Rao J. I. , Watanabe S. , Rao T. K. Gundu , Jagtap Sujit S. , Singh P. K. 
Published: October 2015

AbstractBaZrO3:Gd is prepared by combustion of an aqueous solution of Ba(NO3)2, ZrO(NO3)2, Gd(NO3)3, and urea (1.
ChemInform Abstract: Narrow‐Band Green‐Emitting Phosphor Ba2LiSi7AlN12:Eu2+ with High Thermal Stability Discovered by a Single Particle Diagnosis Approach.
Authors: Takeda Takashi , Hirosaki Naoto , Funahshi Shiro , Xie Rong‐Jun 
Published: October 2015

AbstractLuminescent particles of Ba2LiSi7AlN12:Eu2+ are selected from polycrystalline material obtained by firing Ba3N2, EuN, Si3N4, AlN, and Li3N under N2 in the molar ratio of Eu:Si:Al:Li = 0.8:0.2:0.58:6.42:3 (BN crucible, 1800 °C, 2 h, 1 MPa N2).
ChemInform Abstract: Perovskite Sr‐Doped LaCrO3 as a New p‐Type Transparent Conducting Oxide.
Authors: Zhang Kelvin H. L. , Du Yingge , Papadogianni Alexandra , Bierwagen Oliver , Sallis Shawn , Piper Louis F. J. , Bowden Mark E. , Shutthanandan Vaithiyalingam , Sushko Peter V. , Chambers Scott A. 
Published: October 2015

AbstractLa1‐xSrxCrO3 epitaxial films are grown on SrTiO3 (001 orientation) substrates by molecular beam epitaxy.
ChemInform Abstract: High‐Pressure Synthesis of Novel Boron Oxynitride B6N4O3 with Sphalerite Type Structure.
Authors: Riedel Ralf , et al.  
Published: October 2015

AbstractB6N4O3 is obtained by ball milling of a 1:3 mixture of B2O3 and h‐BN followed by hot pressing (multianvil apparatus, 15.6 GPa, 1900 °C, 20 min).
ChemInform Abstract: Catalytic Enantioselective Reaction of α‐Aminoacetonitriles Using Chiral Bis(imidazoline) Palladium Catalysts.
Authors: Kondo Masaru , Nishi Tomoki , Hatanaka Tsubasa , Funahashi Yasuhiro , Nakamura Shuichi 
Published: October 2015

Abstractα,β‐ and α,α‐ Diaminoacetonitriles are highly syn‐selectively and enantioselectively obtained by reaction of N‐protected α‐aminoacetonitriles with various imines in the presence of a chiral Pd‐catalyst.
ChemInform Abstract: Direct Catalytic Asymmetric Conjugate Addition of Saturated and Unsaturated Thioamides.
Authors: Majumdar Nilanjana , Saito Akira , Yin Liang , Kumagai Naoya , Shibasaki Masakatsu 
Published: October 2015

AbstractIt is found that the thioamide moiety is crucial to promote both the efficient enolization of thiolactam pronucleophiles and the subsequent stereoselective conjugate addition to α,β‐unsaturated thioamides.
ChemInform Abstract: Tandem Dehydrogenation/Oxidation/Oxidative Cyclization Approach to Wrightiadione and Its Derivatives.
Authors: Jeong Yujeong , Moon Youngtaek , Hong Sungwoo 
Published: October 2015

AbstractAn efficient method to construct the tetracyclic isoflavone motif through three‐step tandem dehydrogenation/oxidation/oxidative cyclization reactions with a Pd/Cu catalytic system is presented.