bluuebunny/crossref_metadata_2025_split huggingface dataset:
Análise crítica da aplicação do termo de compromisso como instrumento regulatório do mercado de capitais
Authors: Chaves Vinicius Figueiredo , Soares Abel Rafael 
Published: May 2016

Apoiado em pesquisa bibliográfica, documental e de levantamento de dados, realiza-se uma abordagem sobre a disciplina jurídica do mercado de capitais, tendo como base a análise crítica do instrumento regulatório conhecido como termo de compromisso (acordo susbtitutivo). Percebeu-se que, em conformidade com o art. 11, § 5º, da Lei nº 6.385/76, as normas regulatórias editadas pela CVM, que regem o processo administrativo sancionador nos ritos ordinário e sumário, prescrevem que, quando da intimação dos acusados, advirá a advertência de que estes poderão<strong> </strong>propor a celebração de termo de compromisso. Aceita a proposta e cumprido o acordo, este não importará confissão quanto à matéria de fato, nem reconhecimento de ilicitude da conduta analisada. Do exame dos PAS instaurados entre 2009 e 2014, chegou-se ao número total de 405 termos aprovados pelo órgão regulador, resultados que caracterizam uma acentuada utilização deste instrumento regulatório. Do que foi analisado, conclui-se que, embora o acordo possa ser compreendido como um importante mecanismo no âmbito da regulação do mercado de capitais, o seu uso demasiado implica em desvirtuamento de suas finalidades, dos fundamentos da disciplina normativa do mercado e do conjunto de funções atribuídas à CVM.
Electric field effect of relaxor ferroelectric (1 − x)Pb(Mg1/3Nb2/3)O3–xPbTiO3 crystals near morphotropic phase boundary composition probed by Brillouin scattering
Authors: Aftabuzzaman Md , Kojima Seiji 
Published: May 2016

Abstract
The relaxor ferroelectric (1 − x)Pb(Mg1/3Nb2/3)O3–xPbTiO3 (x = 0.30, PMN–30PT) single crystal was studied under the zero field and the externally applied dc electric field by using micro-Brillouin scattering and dielectric spectroscopies over a wide temperature range of 303–773 K. The noticeable thermal hysteresis of longitudinal acoustic (LA) shift (νB) was observed between zero field heating and zero field cooling processes. Under the electric field of 0.5 kV/cm along the [001] axis, the LA mode splitting was observed in νB due to the coexistence of ferroelectric macrodomain and nanodomain states caused by the random field, and in dielectric measurements the monoclinic (M) and tetragonal phases were appeared between rhombohedral and cubic phases. The LA mode splitting and M phase disappeared under the field of 1.0 kV/cm. The electric field dependence of LA velocity was studied at 304 K. The critical end point of the PMN–30PT single crystal was investigated.
Dissipative and Autonomous Square‐Wave Self‐Oscillation of a Macroscopic Hybrid Self‐Assembly under Continuous Light Irradiation
Authors: Ikegami Tomonori , Kageyama Yoshiyuki , Obara Kazuma , Takeda Sadamu 
Published: May 2016

AbstractBuilding a bottom‐up supramolecular system to perform continuously autonomous motions will pave the way for the next generation of biomimetic mechanical systems. In biological systems, hierarchical molecular synchronization underlies the generation of spatio‐temporal patterns with dissipative structures. However, it remains difficult to build such self‐organized working objects via artificial techniques. Herein, we show the first example of a square‐wave limit‐cycle self‐oscillatory motion of a noncovalent assembly of oleic acid and an azobenzene derivative. The assembly steadily flips under continuous blue‐light irradiation. Mechanical self‐oscillation is established by successively alternating photoisomerization processes and multi‐stable phase transitions. These results offer a fundamental strategy for creating a supramolecular motor that works progressively under the operation of molecule‐based machines.
Iron Alkynyl Helicenes: Redox‐Triggered Chiroptical Tuning in the IR and Near‐IR Spectral Regions and Suitable for Telecommunications Applications
Authors: Shen Chengshuo , Loas Goulc'hen , Srebro‐Hooper Monika , Vanthuyne Nicolas , Toupet Loïc , Cador Olivier , Paul Frédéric , López Navarrete Juan T. , Ramírez Francisco J. , Nieto‐Ortega Belén , Casado Juan , Autschbach Jochen , Vallet Marc , Crassous Jeanne 
Published: May 2016

AbstractThe combination of a bis‐alkynyl‐helicene moiety with two iron centers leads to novel electroactive species displaying unprecedented redox‐triggered chiroptical switching. Upon oxidation, strong changes of vibrational modes (either local or extended coupled modes) are detected by vibrational circular dichroism and Raman optical activity. Remarkably, the sign of the optical rotation at 1.54 µm (that is, at wavelengths typically used for telecommunications) changes upon oxidation while the topology and stereochemistry of the helicene remain unchanged.
CLIP‐COSY: A Clean In‐Phase Experiment for the Rapid Acquisition of COSY‐type Correlations
Authors: Koos Martin R. M. , Kummerlöwe Grit , Kaltschnee Lukas , Thiele Christina M. , Luy Burkhard 
Published: May 2016

AbstractThe COSY experiment is an essential homonuclear 2D NMR experiment for the assignment of resonances. Its multiplet line shape, however, is often overly complicated, potentially leads to signal intensity losses, and is responsible for long minimum overall acquisition times. Herein, we present CLIP‐COSY, a COSY‐type experiment yielding clean in‐phase peaks. It can be recorded within a few minutes and benefits from enhanced signal intensities for most cross‐peaks. In combination with non‐uniform sampling, the experiment times can be further reduced, and the in‐phase multiplets enable the application of modern homonuclear decoupling techniques in both dimensions. As antiphase cancelations are avoided, CLIP‐COSY can also be applied to macromolecules and other samples with broadened lines.
Nitrogen‐Rich Manganese Oxynitrides with Enhanced Catalytic Activity in the Oxygen Reduction Reaction
Authors: Miura Akira , Rosero‐Navarro Carolina , Masubuchi Yuji , Higuchi Mikio , Kikkawa Shinichi , Tadanaga Kiyoharu 
Published: May 2016

AbstractThe catalytic activity of manganese oxynitrides in the oxygen reduction reaction (ORR) was investigated in alkaline solutions to clarify the effect of the incorporated nitrogen atoms on the ORR activity. These oxynitrides, with rock‐salt‐like structures with different nitrogen contents, were synthesized by reacting MnO, Mn2O3, or MnO2 with molten NaNH2 at 240–280 °C. The anion contents and the Mn valence states were determined by combustion analysis, powder X‐ray diffraction, and X‐ray absorption near‐edge structure analysis. An increase in the nitrogen content of rock‐salt‐based manganese oxynitrides increases the valence of the manganese ions and reinforces the catalytic activity for the ORR in 1 m KOH solution. Nearly single‐electron occupancy of the antibonding eg states and highly covalent Mn−N bonding thus enhance the ORR activity of nitrogen‐rich manganese oxynitrides.
Antibacterial silver treatments on polymeric membranes for fouling control and disinfection in water filtration
Authors: Panico Angelica , Paladini Federica , Sannino Alessandro , Pollini Mauro 
Published: May 2016

ABSTRACTOver the past several decades, a lot of emerging contaminants have been detected in water and wastewater effluents. Their release should be minimized since their presence in the environment can result in toxic effects for water and human life. Many different technologies have been used to remove contaminants from drinking water; among them, filtration is one of the most commonly used methods. This study investigated the antibacterial capability of silver water filters and their potential application in the reduction of bacterial fouling and proliferation in water treatment. Poly(ether sulfone) membranes commonly used in water filtration were coated with silver nanoparticles synthesized via the in situ photoreduction method. The morphology of the coating and the distribution of silver clusters were studied by scanning electron microscopy. The amount of silver on the surface was quantified by thermogravimetric analysis, and the silver released from the substrate was analyzed through inductively coupled plasma mass spectrometry. The antibacterial capability of the silver‐treated filters was demonstrated through microbiological tests defined for the specific application on Escherichia coli, as the representative coliform bacterium and pathogenic microorganism commonly associated with contaminated drinking water. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43848.
ChemInform Abstract: Mechanistics Studies on the Cobalt(II) Schiff Base Catalyzed Oxidation of Olefins by O2.
Authors: HAMILTON D. E. , DRAGO R. S. , ZOMBECK A. 
Published: May 2016

AbstractThe Co complex (I) catalyzes the oxidation of terminal and internal olefins such as (II) or (VI) and (IX) by oxygen to give predominantly the ketones (III), the sec. alcohols (IV) or the products (IIIa), (IVa), (VII), and (VIII).
ChemInform Abstract: The Chemistry of Pentavalent Organobismuth Reagents. Part 8. Phenylation and Oxidation of Alcohols by Tetraphenylbismuth Esters.
Authors: BARTON D. H. R. , FINET J.‐P. , MOTHERWELL W. B. , PICHON C. 
Published: May 2016

AbstractPrim. alcohols such as (IV) are O‐phenylated (→ (V)) by treatment with the Bi derivative (Ia) under neutral or slightly acidic conditions in reasonable yields whereas sec. alcohols mostly give only moderate yields of the respective ethers (e.g.
ChemInform Abstract: Hydrolysis of Unsymmetrical Acetamidines: Leaving Abilities and Stereoelectronic Effects.
Authors: PERRIN C. L. , NUNEZ O. 
Published: May 2016

AbstractUnsymmetrical acetamidines (I) hydrolyze in alkaline D2O to a mixture of two acetamides and two amines (II)‐(V), respectively.
ChemInform Abstract: A Novel Phase‐Transfer Catalyzed Cycloaddition of Carbonyl‐Stabilized Sulfur Ylides to Vinylic Sulfones.
Authors: REDDY D. B. , REDDY P. S. , REDDY B. V. , REDDY P. A. 
Published: May 2016

AbstractThe arylcyclopropylsulfones (III) are prepared from the vinylic sulfones (I) by coupling with sulfur ylides derived from the phenacylsulfonium bromides (II).
ChemInform Abstract: The Effect of PH3 Pyrolysis on the Morphology and Growth Rate of InP Grown by Hydride Vapor Phase Epitaxy
Authors: KARLICEK R. F. JUN. , MITCHAM D. , GINOCCHIO J. C. , HAMMARLUND B. 
Published: May 2016

Abstracthas been studied using in situ optical absorption spectroscopy to measure the extent of PH3 pyrolysis in the reactor growth region.
ChemInform Abstract: Photochemical Rearrangement of 2‐Substituted 4‐Alkylidene‐2,3‐epoxy‐1‐ tetralone to 3‐(2‐Oxoalkylidene)‐1‐indanone.
Authors: MARUYAMA K. , OSUKA A. , NAKAGAWA K. , TABUCHI K. , SHIMIZU H. , SUZUKI H. 
Published: May 2016

AbstractIrradiation of the 2,3‐epoxy‐4‐methylene tetralones (I) results in a rearrangement reaction, producing the indanones (II).
ChemInform Abstract: Polynuclear Metal Complexes with Bridging Carbene or Carbyne Ligands. Part 53. Alkylidyne(carbaborane)dimetal Complexes with Tungsten‐Molybdenum and ‐Tungsten Bonds; Crystal Structures of the Compounds (MW(μ‐CC6H4Me‐4)(CO)3(η5‐C9H7)(η5‐C2B9H9Me2)) (M: Mo (Two Isomers) or W).
Authors: GREEN M. , HOWARD J. A. K. , JAMES A. P. , DE M. JELFS A. N. , NUNN C. M. , STONE F. G. A. 
Published: May 2016

AbstractThe salts (I) and the cationic η5‐indenyl complexes (II) react to give the dimetal compounds (IIIa)‐(IIIc).
ChemInform Abstract: The New Superconductor tP‐SrPd2Bi2: Structural Polymorphism and Superconductivity in Intermetallics.
Authors: Xie Weiwei , Seibel Elizabeth M. , Cava Robert J. 
Published: May 2016

AbstractElectrical resistivity, magnetic susceptibility, and specific heat measurements, and electronic structure calculations reveal that tetragonal SrPd2Bi2 is superconducting at 2.0 K, whereas monoclinic SrPd2Bi2 is not.
ChemInform Abstract: Experimental and Theoretical Investigations of Functionalized Boron Nitride as Electrode Materials for Li‐Ion Batteries.
Authors: Zhang Fan , Nemeth Karoly , Bareno Javier , Dogan Fulya , Bloom Ira D. , Shaw Leon L. 
Published: May 2016

AbstractFunctionalized h‐BN (FBN) is obtained by reacting h‐BN with molten LiOH in a 1:1 molar ratio (stainless steel autoclave with Cu gasket, 500 °C, 8 h) followed by an intense ball milling of the product phase.
ChemInform Abstract: Rhodium‐Catalyzed C—S and C—N Functionalization of Arenes: Combination of C—H Activation and Hypervalent Iodine Chemistry.
Authors: Wang Fen , Yu Xinzhang , Qi Zisong , Li Xingwei 
Published: May 2016

AbstractSulfonylation, thioetherification, thiocyanation, and other heterofunctionalization reactions of arenes bearing a pyridyl‐directing group are achieved via initial Rh(II)‐catalyzed C—H hyperiodination of the arenes followed by uncatalyzed nucleophilic functionalization.
ChemInform Abstract: Oxidative Coupling of Aryl Boron Reagents with sp3‐Carbon Nucleophiles: The Enolate Chan—Evans—Lam Reaction.
Authors: Moon Patrick J. , Halperin Heather M. , Lundgren Rylan J. 
Published: May 2016

AbstractIn this new oxidative method for the arylation of activated methylene species Cu(O‐Tf)2 mediates the selective coupling of functionalized aryl boron species with stabilized sp3‐nucleophiles.
ChemInform Abstract: Schwartz′s Reagent‐Mediated Regiospecific Synthesis of 2,3‐Disubstituted Indoles from Isatins.
Authors: Ulikowski A. , Furman B. 
Published: May 2016

AbstractIsatin reacts with alkyl and aryl Grignard reagents to form 3‐substituted 3‐hydroxyoxindoles which are subsequently transformed with various nucleophiles, including allylstannane, thiophenol, indole, acetophenone enol trimethylsilylether and dimethyl malonate.
ChemInform Abstract: Synthesis of Heteroannulated Chromeno[2,3‐b]pyridines: DBU Catalyzed Reactions of 2‐Amino‐6‐methylchromone‐3‐carboxaldehyde with Some Heterocyclic Enols and Enamines.
Authors: Ibrahim Magdy A. , El‐Gohary Nasser M. , Said Sara 
Published: May 2016

AbstractSix new title pyridines are prepared by cyclocondensation of chromonealdehyde (I) with a variety of heterocyclic enols and enamines.
ChemInform Abstract: A New Approach to 1‐Substituted β‐Carbolines and Isoquinolines Utilizing Tributyl[(Z)‐2‐ethoxyvinyl]stannane as a C‐3,C‐4 Building Block.
Authors: Kamlah Alexandra , Lirk Florian , Bracher Franz 
Published: May 2016

AbstractThe title approach starts from the Weinreb amides of readily available indole‐2‐carboxylic acids or 2‐bromobenzoic acid, followed by acylation, bromination, Stille coupling, and ring closure steps.
ChemInform Abstract: Bifunctional Iminophosphorane Catalyzed Enantioselective Ketimine Phospha‐Mannich Reaction.
Authors: Robertson Gerard P. , Farley Alistair J. M. , Dixon Darren J. 
Published: May 2016

AbstractTen bifunctional iminophosphorane superbase organocatalysts are synthesized and compared in title reaction.
Synthesis and Characterization of Fluorescent Silica Nanoparticles Functionalized with Collagens of Variable Lengths
Authors: Zhang Shanshan , Ding Shenglong , Qian Yong , Yuan Miaomiao , Lu Jun , Liu Zaiman , Xiao Jianxi 
Published: May 2016

AbstractCollagen, the most abundant protein in human body, has been widely used as an excellent natural material for diverse biomedical applications due to its superior properties such as ample biological interaction sites, minimal immunogenicity and high biocompatibility. Collagens of different lengths are produced by recombinant technology and utilized to functionalize fluorescent silica nanoparticles (FNPs). The collagen‐functionalized FNPs display mono‐disperse distribution, but their sizes are dependent on the length of collagen. These modified FNPs all show nice fluorescence profile as well as low cytotoxicity, suggesting promising applications in bioimaging. We have demonstrated that various types of collagen, conveniently produced by recombinant technology, can be used to modify silica nanoparticles with nice characteristics such as mono‐dispersion, non‐interference in fluorescence and low toxicity. It may endow fluorescent silica nanoparticles with broad biological applications.
Performance and portability of accelerated lattice Boltzmann applications with OpenACC
Authors: Calore Enrico , Gabbana Alessandro , Kraus Jiri , Schifano Sebastiano Fabio , Tripiccione Raffaele 
Published: May 2016

SummaryAn increasingly large number of HPC systems rely on heterogeneous architectures combining traditional multi‐core CPUs with power efficient accelerators. Designing efficient applications for these systems have been troublesome in the past as accelerators could usually be programmed using specific programming languages threatening maintainability, portability, and correctness. Several new programming environments try to tackle this problem. Among them, OpenACC offers a high‐level approach based on compiler directives to mark regions of existing C, C++, or Fortran codes to run on accelerators. This approach directly addresses code portability, leaving to compilers the support of each different accelerator, but one has to carefully assess the relative costs of portable approaches versus computing efficiency. In this paper, we address precisely this issue, using as a test‐bench a massively parallel lattice Boltzmann algorithm. We first describe our multi‐node implementation and optimization of the algorithm, using OpenACC and MPI. We then benchmark the code on a variety of processors, including traditional CPUs and GPUs, and make accurate performance comparisons with other GPU implementations of the same algorithm using CUDA and OpenCL. We also asses the performance impact associated with portable programming, and the actual portability and performance‐portability of OpenACC‐based applications across several state‐of‐the‐art architectures. Copyright © 2016 John Wiley & Sons, Ltd.
Sag correction and power transfer of double feeder circuit using unified power quality conditioner
Authors: Pai Fu‐Sheng , Tseng Pao‐Shing 
Published: May 2016

SummaryAlternative energy power generation has emerged as a crucial research topic in studies on modern energy systems. Because of the inherently intermittent generating feature of distributed generation systems, system operations associated with the integration of distributed generation into existing power networks may suffer from voltage variations and power delivery problems. Therefore, this paper proposes a new unified power quality conditioner (UPQC) scheme. The proposed UPQC consists mainly of two back‐to‐back inverters that are connected together by a direct current capacitor and installed in series and in parallel with two adjacent feeders. The UPQC can be operated not only for maintaining a downstream voltage to mitigate upstream voltage sags but also for absorbing real power from one feeder and transferring it to the other feeder. To validate the effectiveness of the proposed scheme, scenarios including voltage sags and power transfer between two feeders were tested through experimental validations. The test results help consolidate the feasibility and practicability of the scheme for potential applications. Copyright © 2016 John Wiley & Sons, Ltd.
Pneumothorax in a young man with anorexia nervosa
Authors: Loung Robert P.Y. , Cooney Megan , Fallon Erica M. , Langer Jacob C. , Katzman Debra K. 
Published: May 2016

ABSTRACTPrimary spontaneous pneumothorax (PSP) is defined as a pneumothorax that occurs in the absence of an external cause in an individual without underlying generalized lung disease. A number of factors are important and should be carefully considered in the pathogenesis of PSP. This is the first case report of a PSP in a severely malnourished adolescent male with anorexia nervosa (AN) who was involved in excessive physical activity. Clinicians caring for adolescents with AN and vigorous exercise need to be aware of the risk factors associated with the development of a PSP. © 2016 Wiley Periodicals, Inc.(Int J Eat Disord 2016; 49:895–898)
Antioxidant compounds of Iranian olive oils influenced by growing area, ripening stage, and cultivar
Authors: Noorali Mehry , Barzegar Mohsen , Sahari Mohammad Ali 
Published: May 2016

Phenolic and tocopherol compounds of virgin olive oils, obtained from three imported cultivars (cvs) of Mission, Beleydi, and Koroneiki collected in two different ripening stages from two completely different regions (subdesertic zone (Qom) and Caspian zone (Gorgan)), were determined. Regardless of the growing area conditions, Beleydi cultivars showed the lowest oil content, total phenolic content, secoiridoids, and oleuropein aglycone along with the highest content of decarboxy methyl ligstroside aglycon, ligstroside aglycone, and consequently the lower oxidative stability. Moreover, in spite of lower oil contents, the cvs growing in Qom had higher total phenolic compounds, secoiridoids, oleuropein aglycone and higher oxidative stability. Furthermore, the amount of most of the studied components decreased during the ripening stages.Practical applications: For selection of well‐characterized cvs, assessing cv‐cultivation zone‐maturity seems unavoidable before commercialization. This trend supports the differentiation of various olive oils and have motivated new and unique branding that assist their sales as well as the need for evaluating the adaptability of imported olive cvs into different growing areas and the most appropriate time of harvest before developing plantations, as a key point for mills due to the increased competitiveness and quality protection.Physicochemical properties of selected olive cultivars grown in Iran were determined and a correlation between their phenolic compounds and oxidative stability was achieved. Finally, geographic origin of olive cvs was determined by using principal component analysis.