bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: A Facile Approach to β‐Amino Acid Derivatives via Palladium‐Catalyzed Hydrocarboxylation of Enimides with Formic Acid.
Authors: Dai Jie , Ren Wenlong , Wang Haining , Shi Yian 
Published: November 2015

AbstractTitle compounds (II) are obtained in good yields and with high regioselectivity without the use of CO gas.
ChemInform Abstract: Silver‐Catalyzed Cascade Reaction of Tosylmethyl Isocyanide (TosMIC) with Propargylic Alcohols to (E)‐Vinyl Sulfones: Dual Roles of TosMIC.
Authors: Bounar Haniya , Liu Zhenhua , Zhang Lin , Guan Xiaoxue , Yang Zonglian , Liao Peiqiu , Bi Xihe , Li Xingqi 
Published: November 2015

AbstractThe first examples where TosMIC (II) acts as both an allenylative reagent and sulfonyl source in a cascade reaction are presented.
ChemInform Abstract: A Facile Formal [2 + 1] Cycloaddition of Styrenes with α‐Bromocarbonyls Catalyzed by Copper: Efficient Synthesis of Donor—Acceptor Cyclopropanes.
Authors: Nishikata Takashi , Noda Yushi , Fujimoto Ryo , Ishikawa Shingo 
Published: November 2015

AbstractThe title reaction proceeds through a radical addition, followed by a ring closure process.
ChemInform Abstract: Intramolecular C—H Insertion vs. Friedel—Crafts Coupling Induced by Silyl Cation‐Promoted C—F Activation.
Authors: Allemann Oliver , Baldridge Kim K. , Siegel Jay S. 
Published: November 2015

AbstractPhenyl cations generated from arylfluorides by C—F bond activation with cationic silyl Lewis acids undergo intramolecular arene—coupling and C—H insertion.
ChemInform Abstract: Synergetic Catalytic Effect of Ionic Liquids and ZnO Nanoparticles on the Selective Synthesis of 1,2‐Disubstituted Benzimidazoles Using a Ball‐Milling Technique.
Authors: Sharma Hemant , Kaur Navneet , Singh Narinder , Jang Doo Ok 
Published: November 2015

AbstractThe title benzimidazoles are environmentally‐friendly obtained under solvent‐free reaction conditions using ionic liquid‐coated ZnO‐nanoparticles as recyclable catalyst.
ChemInform Abstract: Facile Synthesis of 2,4‐Disubstituted Thiooxazoles and 2,4‐Disubstituted Oxazole Sulfonyl Chlorides via Acyl Isothiocyanates and TMS‐Diazomethane.
Authors: Trujillo John I. , Arnold Eric P. , Kortum Steve , Robinson Ralph P. 
Published: November 2015

Abstract14 Title compounds of type (IV) and (V) are prepared.
ChemInform Abstract: Efficient Routes Towards a Series of 5,5′‐Bithiazolidinylidenes as π‐Electron Acceptors.
Authors: Le Gal Y. , Ameline D. , Bellec N. , Vacher A. , Roisnel T. , Dorcet V. , Jeannin O. , Lorcy D. 
Published: November 2015

AbstractDifferent approaches are studied to prepare the sulfur rich electron acceptor DEBTTT (IVa).
ChemInform Abstract: Magnetically Recoverable Chitosan‐Stabilized Copper—Iron Oxide Nanocomposite Material as an Efficient Heterogeneous Catalyst for Azide—Alkyne Cycloaddition Reactions.
Authors: Chetia Mitali , Ali Abdul Aziz , Bhuyan Diganta , Saikia Lakshi , Sarma Diganta 
Published: November 2015

AbstractThe title catalyst can be recovered and reused for at least four cycles without significant loss of the catalytic activities.
ChemInform Abstract: T3P as an Efficient Cyclodehydration Reagent for the One‐Pot Synthesis of 2‐Amino‐1,3,4‐oxadiazoles.
Authors: Ilangovan Andivelu , Saravanakumar Shanmugasundar , Umesh Siddappa 
Published: November 2015

AbstractThe title synthesis of oxadiazoles from acylhydrazides and isocyanates is simple, scalable, and environment‐friendly.
ChemInform Abstract: An Organocatalytic Multi‐Molecular Cascade Reaction for the Synthesis of Acetate Functionalized 1,4‐Dihydropyridines.
Authors: Hu Deqing , Liu Yunyun , Wan Jie‐Ping 
Published: November 2015

AbstractAnilines (II) and primary amines (IV) react with ethyl propargylate (I) in the presence of organocatalyst TMSCl/piperazine to give the diethyl dihydropyridin‐3‐dicarboxylates (III) and (V) in moderate to good yields.
ChemInform Abstract: Diversity Oriented Synthesis of 6‐Nitro‐ and 6‐Aminoquinolones and Their Activity as Alkaline Phosphatase Inhibitors.
Authors: Miliutina Mariia , Ivanov Anton , Ejaz Syeda Abida , Iqbal Jamshed , Villinger Alexander , Iaroshenko Viktor O. , Langer Peter 
Published: November 2015

AbstractThe 6‐nitroquinolones [e.g.(III)] are synthesized by cyclization of α,β‐ynones [e.g. (I)] with primary amines [e.g. (II)].
ChemInform Abstract: Copper‐Catalyzed Trifluoromethylation of Alkenes: Synthesis of Trifluoromethylated Benzoxazines.
Authors: Jana Sadhan , Ashokan Athira , Kumar Shailesh , Verma Ajay , Kumar Sangit 
Published: November 2015

AbstractA base and ligand free Cu‐catalyzed method for the construction of trifluoromethylated benzoxazines (III), (V), and (VII) is developed.
ChemInform Abstract: Studies on the Reaction of Aryl Glyoxals with‐Prolinol: Unexpected Formation of Morpholin‐2‐one Derivatives and Stereoselective Trifluoromethylation of the Bicyclic System.
Authors: Mloston Grzegorz , Wroblewska Aneta , Linden Anthony , Heimgartner Heinz 
Published: November 2015

AbstractThe reaction of L‐prolinol with aryl glyoxals affords labile bicyclic products (III), which undergo isomerization in the presence of an acid to form morpholine derivatives as single diastereomer (IV) or mixtures of diastereomers (VII).
ChemInform Abstract: Copper(II)‐Catalyzed β‐Borylation of Acetylenic Esters in Water.
Authors: Peck Cheryl L. , Calderone Joseph A. , Santos Webster L. 
Published: November 2015

AbstractThis facile borylation reaction proceeds in a regio‐, E/Z‐, and chemoselective manner to afford high yields of (Z)‐β‐boryl‐α,β‐unsaturated esters exclusively.
ChemInform Abstract: H2SO4‐Silica: An Efficient Promoter for Selective Removal of Benzylidene and Isopropylidene Groups in the Presence of p‐Methoxybenzyl Group.
Authors: Verma Prashant Rajan , Mukhopadhyay Balaram 
Published: November 2015

AbstractSelective removal of the benzylidene and isopropylidene protections in the presence of acid‐labile p‐methoxybenzyl group using H2SO4—silica in methanol is reported.
ChemInform Abstract: Magnetic Properties of Transition Metal (Mn(II), Mn(III), Ni(II), Cu(II)) and Lanthanide (Gd(III), Dy(III), Tb(III), Eu(III), Ho(III), Yb(III)) Clusters and [Nxn] Grids: Isotropic Exchange and SMM Behaviour
Authors: Thompson Laurence K. , Dawe Louise N. 
Published: November 2015

AbstractReview: 52 refs.
ChemInform Abstract: Biomaterials Based Nano‐Applications of Aloe vera and its Perspective: A Review
Authors: Balaji Arunpandian , Vellayappan Muthu Vignesh , John Agnes Aruna , Subramanian Aruna Priyadarshini , Jaganathan Saravana Kumar , SelvaKumar M. , Faudzi Ahmad Athif bin Mohd , Supriyanto Eko , Yusof Mustafa 
Published: November 2015

AbstractReview: 118 refs.
ChemInform Abstract: Monitoring Organic Reactions by UF‐NMR Spectroscopy
Authors: Herrera Antonio , Fernandez‐Valle Encarnacion , Martinez‐Alvarez Roberto , Molero‐Vilchez Dolores , Pardo‐Botero Zulay D. , Saez‐Barajas Elena 
Published: November 2015

AbstractReview: 75 refs.
A task scheduling strategy based on weighted round robin for distributed crawler
Authors: Ge Dajie , Ding Zhijun , Ji Hongfei 
Published: November 2015

SummaryWith the rapid development of the network, stand‐alone crawlers are finding hard to find and gather information. Distributed crawlers are gradually accepted to solve this problem. This paper proposes a task scheduling strategy based on weighted round robin for small‐scale distributed crawler with formula weights for the current node based on crawling efficiency, implements a distributed crawler system with multithreading support and deduplication which takes the algorithm as core, and discusses some possible extensions and details. The design of the error recovery mechanism and the node table allows crawling nodes have flexible scalability and fault tolerance. Finally, we conducted some experiments to prove the good load balancing performance of the system. Concurrency and Computation: Practice and Experience, 2015.© 2015 Wiley Periodicals, Inc. Copyright © 2015 John Wiley & Sons, Ltd.
Photoinduced Electron Transfer between Psoralens and DNA: Influence of DNA Sequence and Substitution
Authors: Fröbel Sascha , Levi Lucilla , Ulamec Sabine M. , Gilch Peter 
Published: November 2015

AbstractPsoralens are heterocyclic compounds which are, among other uses, used to treat skin deseases in the framework of PUVA therapy. In the dark, they intercalate into DNA and can form photoadducts with thymines upon UV‐A excitation, which harms the affected cells. We have recently discovered that after excitation of intercalated psoralens, an efficient photoinduced electron transfer (PET) from DNA occurs. Here, the PET is studied in detail by means of femtosecond transient absorption spectroscopy. Using DNA samples that contain either only GC or AT base pairs, we show that only guanine donates the electrons. Additionally, the substituent effects on PET are studied relying on three different psoralen derivatives. The substitution alters spectroscopic and electrochemical properties of the psoralens, which are determined by cyclic voltammetry and steady state spectroscopy. These experiments allow us to estimate the PET energetics, which are in line with the measured kinetics. Implications for the applications of psoralens are discussed.
Tailoring the Composition of Bio‐oil by Vapor‐Phase Removal of Organic Acids
Authors: Zhang Jing , Choi Yong S. , Shanks Brent H. 
Published: November 2015

AbstractSelective removal of organic acids from biomass pyrolysis vapors was demonstrated. A broad adsorbent range was tested with CaCO3 showing the best selectivity. Extensive material characterization demonstrated that the acid removal occurred through monolayer adsorption on CaCO3. Adsorbent regeneration was achieved by in situ heat treatment of the postreaction adsorbent where the adsorbed acid was converted into a ketone. The mitigation of the loss of other products was achieved by using surface modified CaCO3 materials, resulting in a significant improvement in the selectivity toward organic acid removal. The surface modification appeared to lead to formation of a metal‐carboxylate intermediate consisting of both acetate and carbonate groups. Acetate group on the CaCO3 surface resulted in the suppression of side reactions. Generally, a higher acid removal was accompanied with a greater loss of other compounds, which could be tuned by using CaCO3 with different surface modification.
Anthraquinone‐Based Polymer as Cathode in Rechargeable Magnesium Batteries
Authors: Bitenc Jan , Pirnat Klemen , Bančič Tanja , Gaberšček Miran , Genorio Boštjan , Randon‐Vitanova Anna , Dominko Robert 
Published: November 2015

AbstractMg batteries are a promising battery technology that could lead to safer and significantly less expensive non‐aqueous batteries with energy densities comparable or even better than state‐of‐the‐art Li‐ion batteries. Although the first prototype Mg battery using stable Mo6S8 as cathode was introduced over fifteen years ago, major challenges remain to be solved. In particular, the design of high energy cathode materials and the development of non‐corrosive electrolytes with high oxidative stability are issues that need to be tackled. Herein, we present a new, general, and robust approach towards achieving stable cycling of Mg batteries. The core of our approach is the use of stable polymer cathode and Mg powder anode coupled with non‐nucleophilic electrolytes. Our systems exhibit an excellent rate capability and significant improvement in electrochemical stability.
Tuning Thiophene‐Based Phenothiazines for Stable Photocatalytic Hydrogen Production
Authors: Cecconi Bianca , Manfredi Norberto , Ruffo Riccardo , Montini Tiziano , Romero‐Ocaña Ismael , Fornasiero Paolo , Abbotto Alessandro 
Published: November 2015

AbstractDibranched donor–(π–acceptor)2 dyes, where phenothiazine is the donor core, cyanoacrylic acid is the acceptor/anchoring group, and π is represented by mono‐ and poly‐cyclic simple and fused thiophene derivatives, were tested as photosensitizers in the photocatalytic production of H2, in combination with a Pt/TiO2 catalyst. The optical and electrochemical properties of the dyes were investigated, showing that careful design of the thiophene‐based π spacer afforded enhanced optical properties. In the H2 production over 20 h, the new thiophene‐based sensitizers revealed improved stability after longer irradiation times and enhanced performances, in terms of H2 production rates and light‐to‐fuel efficiencies, after an initial activation period, which were for the first time associated with enhanced stability under photocatalytic production of H2 and the absence of critical dye degradation.
Microfluidic Separation of Ethylene and Ethane Using Frustrated Lewis Pairs
Authors: Voicu Dan , Stephan Douglas W. , Kumacheva Eugenia 
Published: November 2015

AbstractSeparation of gaseous olefins and paraffins is one of the most important separation processes in the industry. Development of new cost‐effective technologies aims at reducing the high energy consumption during the separation process. Here, we took advantage of the reaction of frustrated Lewis pairs (FLPs) with ethylene to achieve reactive extraction of ethylene from ethylene–ethane mixtures. The extraction was studied using a microfluidic platform, which enabled a rapid, high‐throughput assessment of reaction conditions to optimize gas separation efficiency. A separation factor of 7.3 was achieved for ethylene from a 1:1 volume ratio mixture of ethylene and ethane, which corresponded to an extracted ethylene purity of 88 %. The results obtained in the microfluidic studies were validated using infrared spectroscopy. This work paves the way for further development of the FLPs and optimization of reaction conditions, thereby maximizing the separation efficiency of olefins from their mixtures with paraffins.
Prenatal stress and early‐life exposure to fluoxetine have enduring effects on anxiety and hippocampal BDNF gene expression in adult male offspring
Authors: Boulle Fabien , Pawluski Jodi L. , Homberg Judith R. , Machiels Barbie , Kroeze Yvet , Kumar Neha , Steinbusch Harry W. M. , Kenis Gunter , Van den Hove Daniel L. A. 
Published: November 2015

ABSTRACTWith the growing use of selective serotonin reuptake inhibitor medications (SSRIs) for the treatment of depression during the perinatal period, questions have been raised about the longterm impact of these medications on development. We aimed to investigate how developmental SSRI exposure may alter affect‐related behaviors and associated molecular processes in offspring using a rodent model of maternal stress and depression. For this purpose, prenatally stressed or non‐stressed male offspring were exposed to fluoxetine (5 mg/kg/day) or vehicle, via lactation, until weaning. Primary results show that postnatal fluoxetine exposure differentially altered anxiety‐like behavior by increasing anxiety in non‐stressed offspring and decreasing anxiety in prenatally stressed offspring. In the hippocampus, developmental fluoxetine exposure decreased BDNF IV and TrkB mRNA expression. Prenatal stress alone also decreased escape behaviors and decreased hippocampal BDNF IV mRNA expression. These data provide important evidence for the long‐term programming effects of early‐life exposure to SSRIs on brain and behavior. © 2015 Wiley Periodicals, Inc. Dev Psychobiol 58: 427–438, 2016.
Differences in sap flux‐based stand transpiration between upper and lower slope positions in a Japanese cypress plantation watershed
Authors: Kume Tomonori , Tsuruta Kenji , Komatsu Hikaru , Shinohara Yoshinori , Katayama Ayumi , Ide Jun'ichiro , Otsuki Kyoichi 
Published: November 2015

AbstractThis study investigated the difference in stand transpiration (E) between upper (UP) and lower (LP) slope plots of a Japanese cypress (Chamaecyparis obtusa) watershed to obtain catchment‐scale E estimates. Sap flux‐based stand‐scale E estimates were conducted on the UP and LP, which had contrasting stand structures (diameter at breast height and tree height) despite being the same age. The plant area index was similar in the UP and LP, while the total sapwood area (AS_stand) and the mean sap flux density (JS) in the UP were 23% and ~30% lower, respectively, than those of the LP. Stand‐scale E is the product of the AS_stand and JS in a stand. As a result, E in the UP was ~50% lower than that in the LP. This ratio was relatively constant throughout the year, which was supported by a similar decline in E, which resulted from soil water decline in the UP and LP. Canopy conductance (GC) in the UP was ~50% smaller than that of the LP. In contrast to previous studies that showed a consistent JS along a slope, the differences in E between the UP and LP were caused by differences in AS_stand and JS, probably because the UP exhibited a lower GC per unit leaf area than the LP. Additionally, evapotranspiration (ET), the sum of sap flux‐scaled E plus rainfall interception, was 8–14% lower than the catchment water balance ET (precipitation minus runoff), which suggests the feasibility of calculating sap flux‐scaled E for the two slope positions. Copyright © 2015 John Wiley & Sons, Ltd.
Efficient Taguchi algorithm for cognitive radio spectrum allocation
Authors: Hei Yongqiang , Qiu Zhuo , Liu Jiao , Li Wentao 
Published: November 2015

AbstractIn this paper, the spectrum allocation problem in cognitive radio was studied to improve the utilisation of spectrum by optimising the spectrum allocation factor. On the basis of investigating some existing evolutionary spectrum allocation algorithms applied in the spectrum allocation problem, a new efficient Taguchi algorithm based on orthogonal array was proposed, in which sigmoid limiting transformation was introduced to deal with the 0–1 discrete spectrum allocation optimization problem. A new random level based on Taguchi algorithm is then introduced to solve local optimal problem. The simulation results show that Taguchi algorithm has promising ability in improving the utilisation of spectrum resources when compared with traditional evolutionary algorithms. Besides, Taguchi algorithm has the advantages of easy implementation, low complexity dealing with high‐dimensional problem, and high efficiency in achieving optimum solutions. Copyright © 2015 John Wiley & Sons, Ltd.
Three‐dimensional modeling of non‐hydrostatic free‐surface flows on unstructured grids
Authors: Liu Xin , Mohammadian Abdolmajid , Infante Sedano Julio Ángel 
Published: November 2015

SummaryA three‐dimensional numerical model is presented for the simulation of unsteady non‐hydrostatic shallow water flows on unstructured grids using the finite volume method. The free surface variations are modeled by a characteristics‐based scheme, which simulates sub‐critical and super‐critical flows. Three‐dimensional velocity components are considered in a collocated arrangement with a σ‐coordinate system. A special treatment of the pressure term is developed to avoid the water surface oscillations. Convective and diffusive terms are approximated explicitly, and an implicit discretization is used for the pressure term to ensure exact mass conservation. The unstructured grid in the horizontal direction and the σ coordinate in the vertical direction facilitate the use of the model in complicated geometries. Solution of the non‐hydrostatic equations enables the model to simulate short‐period waves and vertically circulating flows. Copyright © 2015 John Wiley & Sons, Ltd.
The social distraction of facial paralysis: Objective measurement of social attention using eye‐tracking
Authors: Ishii Lisa , Dey Jacob , Boahene Kofi D. O. , Byrne Patrick J. , Ishii Masaru 
Published: November 2015

ObjectivesTo measure the attentional distraction to the facial paralysis deformity using eye‐tracking, and to distinguish between attention paid to the upper and lower facial divisions in patients with complete paralysis. We hypothesized that features affected by the paralysis deformity would distract the casual observer, leading to an altered pattern of facial attention as compared to normals.Study DesignRandomized controlled experiment.MethodsSixty casual observers viewed images of paralyzed faces (House‐Brackmann [HB] IV–VI) and normal faces smiling and in repose. The SMI iView X RED (SensoMotoric, Inc., Boston, MA) eye‐gaze tracker recorded eye movements of observers gazing on the faces. Fixation durations for predefined areas of interest were analyzed using three separate multivariate analyses.ResultsCasual observers gazing on both paralyzed and normal faces directed the majority of their attention to the central triangle (CT) region. Significant differences occurred in the distribution of attention among individual features in the CT and to individual sides of the face. Observers directed more attention to the mouth of paralyzed faces, smiling (analysis of variance [ANOVA] > F 0.0001) and in repose (ANOVA > F 0.0000). Attention was asymmetrically distributed between the two halves of paralyzed faces (paralyzed smiling minus normal smiling P > |z| 0.000).ConclusionsCasual observers directed attention in a measurably different way when gazing on paralyzed faces as compared to normal faces, a finding exacerbated with smiling. These findings help explain society's perceptions of attractiveness and affect display that differ for paralyzed and normal faces and can be used to direct our reconstructive efforts.Level of EvidenceN/A. Laryngoscope, 126:334–339, 2016
Lead and Cadmium in Soils of La Rioja Vineyards, Spain
Authors: Marín Alvaro , Andrades Marisol , Iñigo Victoria , Jiménez‐Ballesta Raimundo 
Published: November 2015

AbstractLand degradation can be triggered by the abuse of chemicals that damage soil quality. Agriculture is changing the chemical and physical properties of soils, and in vineyards, those changes are due to the use of pesticides. In order to assess the Pb and Cd content, 212 soil samples from La Rioja D.O.Ca were analysed. Concentrations of Pb in soil ranged from 0·96 to 64·31 mg kg−1 with a mean concentration of 21·26 mg kg−1 in the surface layer, while they ranged from 7·97–43·93 mg kg−1 with a mean of 20·83 mg kg−1 in the subsurface layer. The mean content of bioavailable lead was 1·03 mg kg−1 in the surface layer and 0·76 mg kg−1 in the subsurface. Cd overall average concentration was 0·29 mg kg−1 in the surface; in the subsurface, the mean was 0·31 mg kg−1 and ranged from 0·10 to 1·22 mg kg−1. The values in the surface layers were 0·15 mg kg−1 and in the subsurface layer 0·01 of Cd bioavailability. On the basis of pedogeochemical Pb and Cd distribution, balanced fertilization will be of great importance for sustainable development of agricultural wine‐producers. Copyright © 2016 John Wiley & Sons, Ltd.