bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: Novel Anthraquinone Based Chalcone Analogues Containing an Imine Fragment: Synthesis, Cytotoxicity and anti‐Angiogenic Activity.
Authors: Kolundzija Branka , Markovic Violeta , Stanojkovic Tatjana , Joksovic Ljubinka , Matic Ivana , Todorovic Nina , Nikolic Marijana , Joksovic Milan D. 
Published: April 2014

AbstractNew compound (Vg) exhibits potent cytotoxic activities against HeLa, LS174, and A549 cancer cells.
ChemInform Abstract: Quinine as an Organocatalytic Dual Activator for the Diastereoselective Synthesis of Spiro‐epoxyoxindoles.
Authors: Chouhan Mangilal , Pal Anang , Sharma Ratnesh , Nair Vipin A. 
Published: April 2014

AbstractThe epoxidation of a variety of ylidene‐indolinones bearing both electron‐withdrawing and donating groups occurs with high yields and trans diastereoselectivity, without formation of side products.
ChemInform Abstract: Silver‐Catalyzed Cascade Cyclization—Stannylation of o‐Alkynylaniline Derivatives with 2‐Tributylstannylfuran: An Efficient Synthesis of (3‐Indolyl)stannanes.
Authors: Liu Jun , Xie Xin , Liu Yuanhong 
Published: April 2014

AbstractThis first example for a cyclization‐stannylation of o‐alkynylalanine derivatives allows the direct synthesis of functionalized (3‐indolyl)stannanes from a broad range of substituted alkynes.
ChemInform Abstract: An InBr3 Catalyzed One‐Pot Three‐Component Synthesis of Functionalized Spirodihydrofuran Oxindoles via Intramolecular Alkyne Carbonyl Metathesis.
Authors: Siddiqui I. R. , Rahila Rahila , Shamim Shayna , Rai Pragati , Shireen Shireen , Waseem Malik A. , Abumhdi Afaf A. H. 
Published: April 2014

AbstractUnder optimized conditions the reaction of isatine (I), alkynes (II), and phenacyl bromides (III) affords the title compounds (IV) in high yields.
ChemInform Abstract: Organocatalyzed Decarboxylative Protonation Process from Meldrum′s Acid: Enantioselective Synthesis of Isoxazolidinones.
Authors: Tite Tony , Sabbah Mohamad , Levacher Vincent , Briere Jean‐Francois 
Published: April 2014

AbstractThe presented procedure gives a broad range of isoxazolidin‐5‐ones with good enantioselectivities and high yields, with exception of compound (V), from readily available Meldrum′s acid derivatives.
ChemInform Abstract: One Pot Synthesis of Bioactive Benzopyranones Through Palladium‐Catalyzed C—H Activation and CO Insertion into 2‐Arylphenols.
Authors: Lee Tai‐Hua , Jayakumar Jayachandran , Cheng Chien‐Hong , Chuang Shih‐Ching 
Published: April 2014

AbstractThe presented oxidative carbonylation of 2‐arylphenols proceeds under acid‐base free and mild conditions with a variety of substrates.
ChemInform Abstract: ICI‐Mediated Intramolecular Twofold Iodoarylation of Diynes and Diynyl Diethers and Amines: Synthesis of Bis(2H‐hydronaphthalene and chromene) and 2H‐Quinoline Bearing an Alkenyl Iodide Moiety.
Authors: Mo Juntae , Choi Wonseok , Min Jiae , Kim Cheol‐Eui , Eom Dahan , Kim Sung Hong , Lee Phil Ho 
Published: April 2014

AbstractThe reaction can be applied to a broad range of diynes under mild conditions with good to high yields.
ChemInform Abstract: A Study of the BF3 Directed Lithiation of 3‐Chloro‐ and 3‐Bromopyridine.
Authors: Dhau Jaspreet S. , Singh Amritpal , Kasetti Yoganjaneyulu , Bhatia Sonam , Bharatam Parsad V. , Brandao Paula , Felix Vitor , Singh Kamal N. 
Published: April 2014

AbstractComplexation of pyridines (I) with BF3 allows the regioselective 2,6‐dilithiation or 2‐lithiation with LDA.
ChemInform Abstract: Cobalt Triflate Catalyzed One‐Pot Synthesis of Fluorophore 1,4‐Dihydropyridine Derivatives via Hantzsch Reaction.
Authors: Bagdi Prasanta Ray , Basha R. Sidick , Lal Mohan , Misra Rajkumar , Khan Abu T. 
Published: April 2014

AbstractA wide range of 1,4‐dihydropyridines (IV) are obtained by four‐component one‐pot condensation of aromatic aldehydes, β‐ketoesters, cyclic 1,3‐diones and ammonium acetate under mild reaction conditions.
ChemInform Abstract: An Asymmetric Normal‐Electron‐Demand Aza‐Diels—Alder Reaction via Trienamine Catalysis.
Authors: Liu Jing‐Xin , Zhou Qing‐Qing , Deng Jin‐Gen , Chen Ying‐Chun 
Published: April 2014

AbstractThe cycloaddition of indol‐3‐ones (I) and 2,4‐dienals (II) via trienamine catalysis of a chiral secondary amine yields multifunctional tricyclic pyrido[1,2‐a]indoles (III) bearing a quaternary chiral center in good stereoselectivities.
ChemInform Abstract: An Expedient Domino Three‐Component [3 + 2]‐Cycloaddition/Annulation Protocol: Regio‐ and Stereoselective Assembly of Novel Polycyclic Hybrid Heterocycles with Five Contiguous Stereocenters.
Authors: Maheswari Shanmugavel Uma , Perumal Subbu 
Published: April 2014

AbstractAzomethine ylides generated in situ from acenaphthoquinone and amino acids undergo 1,3‐dipolar cycloaddition with substrates (I) followed by intramolecular aldol‐type reaction to produce polycyclic heterocycles in a regio‐and stereoselective manner.
ChemInform Abstract: Highly Enantioselective Dearomatizing Formal [3 + 3] Cycloaddition Reactions of N‐Acyliminopyridinium Ylides with Electrophilic Enol Carbene Intermediates.
Authors: Xu Xinfang , Zavalij Peter Y. , Doyle Michael P. 
Published: April 2014

AbstractExtrusion of dinitrogen from enol diazoacetates with a Rh(II) catalyst generates metal enol carbenes.
ChemInform Abstract: An Efficient and Environmentally Friendly Procedure for the Synthesis of Some Novel 8‐Benzylidene‐4‐phenyl‐3,4,5,6,7,8‐hexahydro‐1H‐quinazolin‐2‐ones/thione s Using Tetrabutylammonium Hexatungstate as a Reusable Heterogeneous Catalyst under Solvent‐Free Conditions.
Authors: Ghashang Majid , Mansoor Syed Sheik , Aswin Krishnamoorthy 
Published: April 2014

AbstractResulting products are obtained in high yields within short reaction times.
ChemInform Abstract: Increasing Appendage Diversity on 3,4‐Dihydro‐3‐oxo‐2H‐1,4‐benzoxazines via Aphos—Pd(OAc)2‐Catalyzed Suzuki—Miyaura Cross‐Coupling of Aryl Chlorides.
Authors: Yu Gongli , Zheng Yu , Wu Jinlong , Dai Wei‐Min 
Published: April 2014

AbstractThe Suzuki—Miyaura cross‐coupling of the previously reported chloro‐substituted benzoxazines (I) is developed and the process is also applied to the analogous cross‐coupling of novel different chlorobenzyl substituted derivatives (VIII).
ChemInform Abstract: Aromatic C—H Silylation of Arenes with 1‐Hydrosilatrane Catalyzed by an Iridium(I)/2,9‐dimethylphenanthroline(dmphen) Complex.
Authors: Ishiyama Tatsuo , Saiki Takeaki , Kishida Emi , Sasaki Ikuo , Ito Hajime , Miyaura Norio 
Published: April 2014

AbstractThe silylated products can be used for the Hiyama cross‐coupling reaction.
ChemInform Abstract: RuCl3·3H2O as Catalyst for Ferrier Rearrangement: An Efficient Procedure for the Preparation of Pseudoglycosides.
Authors: Chen Peiran , Lin Lei 
Published: April 2014

AbstractAn efficient protocol for the Lewis‐acid promoted synthesis of 2,3‐unsaturated O‐ and S‐glycosides from glucanes and achiral, as well as chiral primary and secondary alcohols and thioles is presented.
ChemInform Abstract: Stereocontrolled Synthesis of the Oxathiabicyclo[3.3.1]nonane Core Structure of Tagetitoxin.
Authors: Yamada Hitomi , Adachi Masaatsu , Nishikawa Toshio 
Published: April 2014

AbstractThe fully functionalized core structure (I) of tagetitoxin is synthesized from tri‐O‐acetyl‐D‐galactal.
ChemInform Abstract: Simple One‐Pot Regioselective 6‐O‐Phosphorylation of Carbohydrates and Trehalose Desymmetrization.
Authors: Joseph A. Abragam , Chang Chun‐Wei , Wang Cheng‐Chung 
Published: April 2014

AbstractThe presented protocol gives selective access to 6‐phosphorylated monosaccharides and disaccharides in a two step one‐pot procedure from unprotected carbohydrates or glycosides in good yields.
ChemInform Abstract: Convenient Synthesis of Glycosyl Bromide from 1‐O‐Acetyl Sugars by Photo‐Irradiative Phase‐Vanishing Reaction of Molecular Bromine.
Authors: Tojino Mami , Hirose Yuriko , Mizuno Mamoru 
Published: April 2014

AbstractA bottom phase of molecular bromine, overlaid with perfluorohexane and again overlaid with ethylacetate containing a monosaccharide gives rise to formation of HBr upon UV irradiation to furnish glycosyl bromide.
ChemInform Abstract: Isolation and Biological Evaluation of Chromone Alkaloid Dysoline, a New Regioisomer of Rohitukine from Dysoxylum binectariferum.
Authors: Vishwakarma Ram A. , et al. et al. 
Published: April 2014

AbstractDysoline (I) is isolated from the stem barks of the title plant together with rohitukine and rohitukine‐N‐oxide.
ChemInform Abstract: Two New Diphenylethylenes from Arundina graminifolia and Their Cytotoxicity.
Authors: Li Yin‐Ke , Zhou Bin , Ye Yan‐Qing , Du Gang , Niu De‐Yun , Meng Chun‐Yang , Gao Xue‐Mei , Hu Qiu‐Fen 
Published: April 2014

AbstractTwo new diphenylethylenes gramniphenols H (Ia) and I (Ib) are isolated from the whole plant of Arundina graminifolia.
Slip Model and Co‐Seismic Displacement Field Derived from Near‐Source Strong Motion Records of the Lushan Ms7.0 Earthquake on 20 April 2013
Authors: Ming‐Pei JIN , Rong‐Jiang WANG , Hong‐Wei TU 
Published: April 2014

AbstractNear‐source co‐seismic displacement field of the 20 April 2013 Ms7.0 Lushan, Sichuan earthquake is estimated from digital strong‐motion records after correction for their baseline errors using an improved empirical method and compared with the GPS observations. Furthermore, different slip models of the earthquake are inverted from the GPS and strong‐motion based displacement data separately and jointly, which are in good agreement. Both show that the earthquake is dominated by the thrust mechanism (also a few left‐lateral dislocations). The maximum horizontal and vertical co‐seismic displacements reached 4.9 cm and 4.4 cm at station 51YAM and 51QLY, respectively. The fault slips are mainly distributed around the first event and in an area of about 30 km along the strike and 25 km along the dip. The moment magnitude is estimated to be Mw6.7, and the peak slip is about 1.14 m for strong motion data and 1.09 m for GPS. The surface rupture should be very small. Finally, we discuss the minimum requirements on the strong‐motion data that ensure a reliable recovery of the co‐seismic displacement data and corresponding problems in the current strong‐motion networks in China.
Deconvolution and Simulation of Seismic Records in the Time Domain and Application to the Relative Measurements of Seismometer Azimuths
Authors: Jian‐Bo XIE 
Published: April 2014

AbstractThis paper presents a recursive filter designed from the second order transfer function of a velocity‐flat‐response seismometer by impulse invariance. This filter includes less coefficients than that designed by bilinear transformation and its usage is more convenient. Numeric experiments using this recursive filter have been done for deconvolution and simulation. A short period record was also simulated for a real broadband record of an earthquake. All the simulated results are well consistent with real system records. Some relative azimuth measurements of seismometers with the cross correlation analysis method have been conducted with the aids of simulation. The results are closer to absolute measurements by the north finder than that without simulation.
Quality Factor Characteristics of Six Metamorphic Kinds of Coal in China
Authors: Xiao‐Kai XU , Yun WANG , Zhao‐Ping MENG 
Published: April 2014

AbstractLab ultrasonic measurements to metamorphic kinds of coal reveal the relation between the maximum vitrinite reflectance and ultrasonic quality factor. And then the relations between ultrasonic velocities and quality factors, including the anisotropic characteristics of quality factors are analyzed. The results show that there are good linear correlations between the maximum vitrinite reflectance and P‐ and S‐wave quality factors, between velocities in direction perpendicular to seams and quality factors, and between the P‐ wave quality and S‐wave's quality factors in direction vertical to seams. Moreover, there are stronger anisotropies in seismic quality factors than velocities. Comparison of the measured S‐wave Q values with estimated values, based on a theoretical formula, indicates an only 7.2% relative error in this method. It proves that this theoretical formula can be applied to attenuation compensation of the converted shear wave in processing of multi‐component seismic data.
Clinical Outcomes of Biodegradable Polymer Drug‐Eluting Stents for Percutaneous Coronary Intervention: An Updated Meta‐analysis of Randomized Controlled Trials
Authors: Kwong Joey S.W. , Yu Cheuk‐Man 
Published: April 2014

ABSTRACTBiodegradable polymer drug‐eluting stents (DES) are innovative concepts in the era of percutaneous coronary intervention. We systematically reviewed the latest randomized evidence on the efficacy and safety of biodegradable polymer DES as compared to durable polymer DES. MEDLINE, Embase, and the Cochrane database were searched in August 2013 for eligible randomized controlled trials (RCTs) comparing biodegradable polymer DES with durable polymer DES. Clinical outcomes of interest were mortality, myocardial infarction (MI), target lesion revascularization (TLR), target vessel revascularization (TVR), and stent thrombosis. A total of 20 RCTs randomizing 20 021 participants were included, of whom 11 045 were allocated to biodegradable polymer DES and 8976 to durable polymer DES. Treatment of biodegradable polymer DES was not associated with a significant reduction of any of the clinical outcomes (all‐cause mortality, odds ratio [OR]: 0.94, 95% confidence interval [CI]: 0.80 to 1.10, P = 0.42; cardiovascular mortality, OR: 0.97, 95% CI: 0.79 to 1.19, P = 0.74; MI, OR: 1.07, 95% CI: 0.91 to 1.26, P = 0.41; TLR, OR: 0.87, 95% CI: 0.69 to 1.08, P = 0.20; TVR, OR: 1.05, 95% CI: 0.85 to 1.28, P = 0.67; definite/probable stent thrombosis, OR: 0.80, 95% CI: 0.59 to 1.07, P = 0.14). Current randomized data indicate that clinical efficacy and safety profiles of biodegradable polymer DES are comparable to those of durable polymer DES. Findings from large‐scale studies with rigorous methodology and long follow‐up duration are needed.
Total Synthesis of Anticoagulant Pentasaccharide Fondaparinux
Authors: Li Tiehai , Ye Hui , Cao Xuefeng , Wang Jiajia , Liu Yonghui , Zhou Lifei , Liu Qiang , Wang Wenjun , Shen Jie , Zhao Wei , Wang Peng 
Published: April 2014

AbstractThe anticoagulant pentasaccharide fondaparinux was synthesized using an improved and optimized synthetic strategy including a convergent [3+2] coupling approach, orthogonal protecting groups and various glycosyl donors. The new methods of glycosylation were also used for controlling the stereochemical configuration and improving the yield of the glycosylation. In addition, HPLC and NMR methods to monitor the process of total synthesis of fondaparinux were employed. This work provides a comprehensive elaboration for the synthesis and analysis of fondaparinux based on related literature, as well as abundant information for the synthesis of heparin‐like oligosaccharides.
High‐Throughput Screening of Metal‐N‐Heterocyclic Carbene Complexes against Biofilm Formation by Pathogenic Bacteria
Authors: Bernardi Thierry , Badel Stéphanie , Mayer Pascal , Groelly Jérome , de Frémont Pierre , Jacques Béatrice , Braunstein Pierre , Teyssot Marie‐Laure , Gaulier Christelle , Cisnetti Federico , Gautier Arnaud , Roland Sylvain 
Published: April 2014

AbstractA set of molecules including a majority of metal‐N‐heterocyclic carbene (NHC) complexes (metal=Ag, Cu, and Au) and azolium salts were evaluated by high‐throughput screening of their activity against biofilm formation associated with pathogenic bacteria. The anti‐planktonic effects were compared in parallel. Representative biofilm‐forming strains of various genera were selected (Listeria,Pseudomonas,Staphylococcus, andEscherichia). All the compounds were tested at 1 mg L−1by using the BioFilm Ring Test. An information score (IS, sum of the activities) and an activity score (AS, difference between anti‐biofilm and anti‐planktonic activity) were determined from normalized experimental values to classify the most active molecules against the panel of bacterial strains. With this method we identified lipophilic AgIand CuIcomplexes possessing aromatic groups on the NHC ligand as the most efficient at inhibiting biofilm formation.
A hybrid approach to parallelize a fast non‐dominated sorting genetic algorithm for phylogenetic inference
Authors: Santander‐Jiménez Sergio , Vega‐Rodríguez Miguel A. 
Published: April 2014

SummaryThe field of computational biology encloses a wide range of optimization problems that show non‐deterministic polynomial‐time hard complexities. Nowadays, phylogeneticians are dealing with a growing amount of biological data that must be analyzed to explain the origins of modern species. Evolutionary relationships among organisms are often described by means of tree‐shaped structures known as phylogenetic trees. When inferring phylogenies, two main challenges must be addressed. First, the inference of reliable evolutionary trees on data sets where different optimality principles support conflicting evolutionary hypotheses. Second, the processing of enormous tree searches spaces where traditional sequential strategies cannot be applied. In this sense, phylogenetic inference can benefit from the combination of high performance computing and evolutionary computation to carry out the reconstruction of complex evolutionary histories in reduced execution times. In this paper, we introduce multiobjective phylogenetics, a hybrid OpenMP/MPI approach to parallelize a well‐known multiobjective metaheuristic, the fast non‐dominated sorting genetic algorithm (NSGA‐II). This algorithm has been designed to conduct phylogenetic analyses on multi‐core clusters in accordance with two principles: maximum parsimony and maximum likelihood. The main goal is to combine the benefits of shared‐memory and distributed‐memory programming paradigms to efficiently infer a set of high‐quality Pareto solutions. Experiments on six real nucleotide data sets and comparisons with other hybrid parallel approaches show that multiobjective phylogenetics is able to achieve significant performance in terms of parallel, multiobjective, and biological results. Copyright © 2014 John Wiley & Sons, Ltd.
SecNRCC: a loss‐tolerant secure network reprogramming with confidentiality consideration for wireless sensor networks
Authors: Xie Mande , Bhanja Urmila , Wei Guiyi , Ling Yun , Hassan Mohammad Mehedi , Alamri Atif 
Published: April 2014

SummaryNetwork reprogramming faces lots of threats from both external attackers and potentially compromised nodes. Security thus becomes a critical requirement for network reprogramming protocols. This paper describes a secure network reprogramming system called SecNRCC for dynamically reprogramable wireless sensor network. In SecNRCC, a light weight authentication method is firstly introduced for the reboot control command. Secondly, a program image preprocess method with security and loss‐tolerance consideration is proposed. Furthermore, a novel immediate packet authentication algorithm with confidentiality consideration is also presented to resist the denial of service attacks exploiting the authentication delay, and finally, a weak authentication operation is performed before the digital signature verification to mitigate denial of service attacks against signature packets. The experimental results show that SecNRCC can securely disseminate the program image to all of node in the wireless sensor networks with acceptable latency and message cost. Copyright © 2014 John Wiley & Sons, Ltd.
Simulation of MPI applications with time‐independent traces
Authors: Casanova Henri , Desprez Frédéric , Markomanolis George S. , Suter Frédéric 
Published: April 2014

SummaryAnalyzing and understanding the performance behavior of parallel applications on parallel computing platforms is a long‐standing concern in the High Performance Computing community. When the targeted platforms are not available, simulation is a reasonable approach to obtain objective performance indicators and explore various hypothetical scenarios. In the context of applications implemented with the Message Passing Interface, two simulation methods have been proposed, on‐line simulation and off‐line simulation, both with their own drawbacks and advantages. In this work, we present an off‐line simulation framework, that is, one that simulates the execution of an application based on event traces obtained from an actual execution. The main novelty of this work, when compared to previously proposed off‐line simulators, is that traces that drive the simulation can be acquired on large, distributed, heterogeneous, and non‐dedicated platforms. As a result, the scalability of trace acquisition is increased, which is achieved by enforcing that traces contain no time‐related information. Moreover, our framework is based on a state‐of‐the‐art scalable, fast, and validated simulation kernel. We introduce the notion of performing off‐line simulation from time‐independent traces, propose and evaluate several trace acquisition strategies, describe our simulation framework, and assess its quality in terms of trace acquisition scalability, simulation accuracy, and simulation time. Copyright © 2014 John Wiley & Sons, Ltd.
Mediating Value Conflicts
Authors: Illes Rosabelle , Ellemers Naomi , Harinck Fieke 
Published: April 2014

AbstractMediation has developed into an established discipline consisting of a variety of tactics that may be employed when intervening in different types of conflicts. One particular type of conflict that has been identified as difficult, if not impossible, to resolve is value conflicts. Research dedicated to developing interventions aimed at resolving value‐based disputes is limited. To address this gap between research and practice, we interviewed professional mediators to gain insight into the techniques employed when intervening in value conflicts. This preliminary exploratory study resulted in several propositions. The analysis of the transcripts is presented, and plans for future research are discussed.
Direct Plasma Potential Measurements by Ball‐Pen Probe and Self‐Emitting Langmuir Probe on COMPASS and ASDEX Upgrade
Authors: Adamek J. , Horacek J. , Seidl J. , Müller H. W. , Schrittwieser R. , Mehlmann F. , Vondracek P. , Ptak S. , COMPASS Team  , ASDEX Upgrade Team  
Published: April 2014

AbstractExperimental investigations of the plasma potential by means of a ball‐pen probe and self‐emitting Langmuir probe technique were performed on the tokamaks COMPASS and ASDEX Upgrade. A spontaneous transition between the cold and self‐emitting Langmuir probe has been observed during the deep reciprocation in the vicinity or even inside the last closed flux surface (LCFS) of both tokamaks. These measurements of the plasma potential allow us to compare two independent probe techniques based on heating and non‐heating processes. The observed different conditions of the spontaneous transition can be ascribed to different physical mechanisms. Nevertheless, the comparison of the power spectra of ball‐pen probe and self‐emitting Langmuir probe indicates very good agreement in all measurements and therefore these two probe techniques are interchangeable. (© 2014 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)