bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: Asymmetric Construction of Spirocyclopentenebenzofuranone Core Structures via Highly Selective Phosphine‐Catalyzed [3 + 2] Cycloaddition Reactions.
Authors: Albertshofer Klaus , Tan Bin , Barbas Carlos F. III 
Published: October 2013

AbstractBenzofuranone derivatives (I) undergo [3 + 2] cycloaddition with Morita—Baylis—Hillman carbonates in the presence of a chiral 1,2‐ethanediylphospholane as catalyst under mild conditions.
ChemInform Abstract: Access to New Sulfolene Derivatives via Formylation of Thiolan‐3‐one.
Authors: Gordivska Olga , Listunov Dmytro , Popov Kirill , Volovnenko Tatyana , Volovenko Yulian 
Published: October 2013

AbstractThe synthesis of the title compounds (III) and (IV) and their application in the synthesis of heterocyclic sulfides is described.
ChemInform Abstract: A One‐Pot Stereoselective Synthesis of Electron‐Deficient 4‐Substituted (E,E)‐1‐Arylsulfonylbuta‐1,3‐dienes and Their Chemoselective [3 + 2] Cycloaddition with Azomethine Ylides — A Simple Synthesis of 1,3,4‐Trisubstituted Pyrrolidines and Pyrroles.
Authors: Sankar Ulaganathan , Mahalakshmi Susarla , Balasubramanian Kalapattu Kuppuswamy 
Published: October 2013

AbstractSubstrates (I) undergo alkylative elimination upon treatment with bromides (II) to afford (E,E)‐1,3‐dienes (III).
ChemInform Abstract: A New CAN‐Catalyzed Domino Process Related to the Nenitzescu Reaction: Very Concise Access to Fused ortho‐Indolequinones from Simple Precursors.
Authors: Suryavanshi Padmakar A. , Sridharan Vellaisamy , Menendez J. Carlos 
Published: October 2013

AbstractA two‐step method for the synthesis of potentially pharmacologically relevant ortho‐quinones (VI) is developed.
ChemInform Abstract: One‐Pot Synthesis of 1,3‐Thiazolidin‐4‐one Using Bi(SCH2COOH)3 as Catalyst.
Authors: Foroughifar Naser , Ebrahimi Sattar 
Published: October 2013

AbstractThe three‐component reaction of aromatic amines (II), aromatic aldehydes (I), and thioglycolic acid (III) furnishing the title thiazolidinone derivatives (IV) (11 examples) is efficiently catalyzed by a Bi/mercapto acid complex under solvent‐free conditions.
ChemInform Abstract: Construction and Functionalization of Pyranone Ring Fused with Pyran Moiety: Design and Synthesis of Novel Pyrano[4,3‐b]pyran‐5(4H)‐ones as Potential Inhibitors of Sirtuins.
Authors: Nakhi Ali , Rahman Md. Shafiqur , Archana Sivakumar , Kishore Ravada , Seerapu G. P. K. , Kumar K. Lalith , Haldar Devyani , Pal Manojit 
Published: October 2013

AbstractA broad range of the functionalized title compounds is synthesized and evaluated for their inhibitory activity.
ChemInform Abstract: Waol A (I), trans‐Dihydrowaol A (II), and cis‐Dihydrowaol A (III): Polyketide‐Derived γ‐Lactones from a Volutella Species.
Authors: El‐Elimat Tamam , Figueroa Mario , Raja Huzefa A. , Adcock Audrey F. , Kroll David J. , Swanson Steven M. , Wani Mansukh C. , Pearce Cedric J. , Oberlies Nicholas H. 
Published: October 2013

AbstractThe γ‐lactones (I) and (II) are tested against two cancer cell lines, whereas compound (I) displays moderate cytotoxic activity against the SW‐620 cancer cell line, compound (II) shows no activity.
ChemInform Abstract: Total Synthesis of the Trifluoromethylated Analogue of Isoaltholactone: 5‐Trifluoromethylisoaltholactone.
Authors: Chen Jun‐Ling , Chu Lingling , Qing Feng‐Ling 
Published: October 2013

AbstractThe synthesis of the first fluorine‐containing analog of isoaltholactone, 5‐trifluoromethylisoaltholactone (I), is described.
ChemInform Abstract: Synthesis of New Chromeno‐Annulated cis‐Fused Pyrano[4,3‐c]isoxazole Derivatives via Intramolecular Nitrone Cycloaddition and Their Cytotoxicity Evaluation.
Authors: Bejjanki Naveen Kumar , Venkatesham Akkaladevi , Madda Jyothi , Kommu Nagaiah , Pombala Sujitha , Kumar C. Ganesh , Prasad Kothakonda Rajendra , Nanubolu Jagadeesh Babu 
Published: October 2013

AbstractA broad range of chromeno‐annulated cis‐fused pyrano[4,3‐c]isoxazole derivatives is synthesized via a catalyst‐free PEG mediated 1,3 cycloaddition employing in situ generated benzylic nitrones is presented.
ChemInform Abstract: Multicomponent Reactions Leading to Symmetric and Asymmetric Multi‐Substituted 1,4‐Dihydropyridines on Montmorillonite.
Authors: Liu Yu‐peng , Liu Jin‐ming , Wang Xin , Cheng Tie‐ming , Li Run‐tao 
Published: October 2013

AbstractThe use of montmorillonite K10 clay as promoter for the synthesis of 1,4‐dihydropyridines (IV) is described.
ChemInform Abstract: Asymmetric Transfer Hydrogenation of 3‐Nitroquinolines: Facile Access to Cyclic Nitro Compounds with Two Contiguous Stereocenters.
Authors: Cai Xian‐Feng , Chen Mu‐Wang , Ye Zhi‐Shi , Guo Ran‐Ning , Shi Lei , Li Yan‐Qin , Zhou Yong‐Gui 
Published: October 2013

AbstractThe first organocatalytic asymmetric hydrogenation of 3‐nitroquinolines is developed tolerating (het)aryl and styryl substituents.
ChemInform Abstract: Straightforward Synthesis of 2‐Propylquinolines under Multicomponent Conditions in Fluorinated Alcohols.
Authors: Venkateswarlu Ch. , Balaji P. V. , De Kavita , Crousse Benoit , Figadere Bruno , Legros Julien 
Published: October 2013

AbstractA 3‐component Povarov reaction between butyraldehyde, aromatic amines and ethyl vinyl ether in trifluoroethanol followed by an oxidation, offers a convenient entry to differently substituted 2‐propylquinolines.
ChemInform Abstract: Rhodium(III)‐Catalyzed Intermolecular Direct Amidation of Aldehyde C—H Bonds with N‐Chloroamines at Room Temperature.
Authors: Zhou Bing , Du Juanjuan , Yang Yaxi , Li Yuanchao 
Published: October 2013

AbstractA direct amidation of 8‐quinolincarbaldehyde (II) is achieved by mild conversion of primary and secondary amines to N‐chloroamines followed by Pd‐catalyzed coupling with the aldehyde in the presence of AgSbF6 as chloride scavenger.
ChemInform Abstract: Synthesis of Novel Pyrano[2,3‐b]pyridines from α,α′‐Bis(substituted‐benzylidene)cycloalkanones.
Authors: Bigdeli Mohammad Ali , Marjani Katayon , Farokhi Elinaz , Sheikhosseini Enayatollah , Ghazanfari Dadkhoda 
Published: October 2013

AbstractThe reactions are conducted under mild conditions.
ChemInform Abstract: Enantioselective Michael Addition/Iminium Ion Cyclization Cascades of Tryptamine‐Derived Ureas.
Authors: Aillaud Isabelle , Barber David M. , Thompson Amber L. , Dixon Darren J. 
Published: October 2013

AbstractTryptamine‐derived ureas undergo Michael addition/iminium ion cyclization reaction upon treatment with enones in the presence of a chiral BINOL derived phosphonic acid catalyst to give polyheterocyclic products with good enantioselectivities.
ChemInform Abstract: Rapid Entry into Heterocycle‐Fused Benzylic Azepines and Azocines via Directed Metallation/Ring‐Closing Metathesis.
Authors: Moss Thomas A. 
Published: October 2013

AbstractDienes (I), (III), and (V), are synthesized and applied in the ring‐closing metathesis reaction to afford a series of heterocyclic fused 2‐azocine derivatives (II), (IV), and (VI), respectively.
ChemInform Abstract: Pyridinium Dichlorophosphinomethylides and 2‐Phosphaindolizines.
Authors: Sharma Anupama , Gupta Neelima , Bansal Raj K. 
Published: October 2013

AbstractThe formation of some new pyridinium salts (II) (yields not given) and phosphaindolizines (III) by treatment of pyridinium bromides (I) with PCl3 is reported.
ChemInform Abstract: P‐Ligand‐Free, Microwave‐Assisted Variation of the Hirao Reaction under Solvent‐Free Conditions; the P—C Coupling Reaction of <P(O)H Species and Bromoarenes.
Authors: Jablonkai Erzsebet , Keglevich Gyoergy 
Published: October 2013

AbstractAn environmentally friendly and more general method for the title synthesis is developed.
ChemInform Abstract: Humulane‐Type Sesquiterpenoids from Pilea cavaleriei subsp. crenata
Authors: Liao Cang‐Song , Tang Chun‐Ping , Yao Sheng , Ye Yang 
Published: October 2013

Abstractisolation and structure elucidation of nine new, uncommon humulane‐type sesquiterpenoids
ChemInform Abstract: Stereoselective Synthesis of Ketoses by Aldol Reaction Using Water‐Compatible Prolinamide Catalysts in Aqueous Media.
Authors: Miura Daisuke , Fujimoto Takashi , Tsutsui Ayumi , Machinami Tomoya 
Published: October 2013

AbstractBifunctional prolinamido‐glycosides are described as catalyst for the aldol reaction of 2,2‐dimethyl‐1,3‐dioxan‐5‐one (I) with 2,3‐O‐isopropylidene‐D‐glyceraldehyde (II) to furnish product (III) in high diastereomeric excess.
ChemInform Abstract: Near‐Infrared Absorbing Cu12Sb4S13 and Cu3SbS4 Nanocrystals: Synthesis, Characterization, and Photoelectrochemistry.
Authors: van Embden Joel , Latham Kay , Duffy Noel W. , Tachibana Yasuhiro 
Published: October 2013

AbstractTetrahedrite Cu12Sb4S13 nanocrystals are prepared from mixtures of CuCl, SbCl3, oleylamine, oleic acid, and 1‐octadecene (vacuum, 190 °C) followed by injection of bis(trimethylsilyl)sulfide.
ChemInform Abstract: Asymmetric Synthesis of α‐Amino Acids via Homologation of Ni(II) Complexes of Glycine Schiff Bases. Part 1. Alkyl Halide Alkylations
Authors: Sorochinsky Alexander E. , Acena Jose Luis , Moriwaki Hiroki , Sato Tatsunori , Soloshonok Vadim A. 
Published: October 2013

AbstractReview: 141 refs.
When users become sensors: can we trust their readings?
Authors: Tanas Cristian , Herrera‐Joancomartí Jordi 
Published: October 2013

SummarySmart sensor network arises as a new generation of sensor networks, where a crowd of possibly anonymous volunteers are involved in the tasks of collecting data from the surrounding environment and providing it to the community. In this paper, we analyze one of the main questions, often forgotten, in these scenarios: whether or not we can trust the sensor readings provided by the individuals engaged in the sensor network. We introduce a data reliability architecture capable of filtering and validating sensor readings in an open environment, where not all users are equally honest. Simulations based on a real world smart sensor application allow us to make a first analysis of the proposed architecture's performance and the variables that have a significant impact on this performance. Copyright © 2013 John Wiley & Sons, Ltd.
Sand dune stabilization reduces infiltration and soil moisture: a case study from the northern Great Plains
Authors: Hugenholtz Chris H. , Koenig Daniel K. 
Published: October 2013

ABSTRACTThroughout the northern Great Plains of North America, there are large tracts of vegetation‐stabilized aeolian dune fields; some have transformed from desert‐like conditions to grassland only within the last 200 years. Here, we examine how this transformation has affected vadose zone hydrology by comparing infiltration and soil moisture on stabilized and active dunes at a dune field in Saskatchewan, Canada. At one active and one stabilized dune, we measured soil moisture dynamics throughout the 2010 growing season with time‐domain reflectometry sensors installed at four depths down to 200 cm below the surface. We also acquired soil samples from two active and two stabilized dunes ten times throughout the 2010 growing season to measure soil moisture dynamics down to 500 cm below the surface. Results indicate that while soil moisture was elevated at 25 cm depth in the stabilized dunes during the 2010 growing season, below that level soil, moisture was significantly lower than the active dunes and also more variable down to 500 cm. A comparison of surface hydraulic conductivity between one active dune and one stabilized dune showed that it was more than one order of magnitude greater at the former, presumably due to the elevated levels of silt, clay, and organics at the surface of the stabilized dune, which reduce the infiltration rate. Overall, we interpret the main difference in soil moisture dynamics to be caused by the presence of transpiring vegetation, as well as changes in soil properties attributed to the establishment of vegetation. Therefore, the results of this study suggest that during dune stabilization, the establishment of vegetation reduces profile soil moisture recharge. Copyright © 2013 John Wiley & Sons, Ltd.
Dependence of Generator Parameters on Pulsed Power Ice Breaking
Authors: Ihara Satoshi , Kominato Yuichi , Fukuda Kazuyuki , Yamabe Chobei , Ushio Shuki 
Published: October 2013

SUMMARYIn this research, an investigation on breaking of ice using a pulsed power generator for navigation of an icebreaker in an ice‐covered ocean is described. In these experiments, a pulsed arc discharge was formed using a Marx generator. In order to investigate the dependence of the input energy required for ice‐breaking on the circuit parameters of the generator, the capacitance of the generator was varied. The input energy for ice‐breaking was calculated from the waveforms of the electric power. It was found that the input energy for ice‐breaking decreased as the peak power increased with a decrease in the capacitance of the generator. © 2013 Wiley Periodicals, Inc. Electr Eng Jpn, 186(2): 1–9, 2014; Published online in Wiley Online Library (wileyonlinelibrary.com). DOI 10.1002/eej.22317
A Wind Power Forecasting Method and Its Confidence Interval Estimation
Authors: Iizaka Tatsuya , Jintsugawa Toru , Kondo Hideyuki , Nakanishi Yosuke , Fukuyama Yoshikazu , Mori Hiroyuki 
Published: October 2013

SUMMARYThis paper describes a wind power forecasting method and its confidence interval estimation. Recently, flat control of wind power generators using various batteries has been required. In flat control, accurate wind power forecasts and their error confidence intervals are needed. In this paper, wind speed forecasts are calculated by regression models using Grid Point Value (GPV) weather forecasts. The forecasts are adjusted by fuzzy inference using the latest errors. The wind power forecasts are translated from the wind speed forecasts using two power curves. The power curves are selected or combined by fuzzy inference depending on the wind direction. The error confidence interval models are generated for each forecasting target time. Each confidence interval is combined by the other fuzzy inference. The proposed methods were applied to actual wind power generators, and it was found that the forecasting errors were smaller than in the conventional methods. Almost all of the forecasts can be within the error confidence intervals estimated by the proposed methods. The results show the effectiveness of the proposed methods. © 2013 Wiley Periodicals, Inc. Electr Eng Jpn, 186(2): 52–60, 2014; Published online in Wiley Online Library (wileyonlinelibrary.com). DOI 10.1002/eej.22326
Small Conductive Particle Detection with a Microwave Resonant Cavity
Authors: Ikeda Makoto , Mase Atsushi , Uchino Kiichiro 
Published: October 2013

SUMMARYThe recent miniaturization and increased complexity of electrical devices have increased the influence of impurities on device performance, especially the influence of small conductive particles with a size on the order of micrometers. Therefore, the inspection of devices during the manufacturing process has become important. In this study, changes in the resonance properties of a microwave cavity were used to detect a metal particle. The decrease in the resonant frequency for a 100‐µm stainless steel sphere was about 0.1 MHz, which was less than 1 ppm of the resonant frequency used. This frequency change is too small to detect directly in the output of a particle detector. Transmission measurements (the scattering parameter S21) at a frequency that was a few megahertz higher than the resonant frequency where the S21 changes sharply were used to magnify signal changes resulting from the introduction of a small conductive particle. A resonant frequency of 13.3 GHz and a frequency 3 MHz higher were chosen for obtaining measurements in the present study. By applying a filtering technique, it was shown that the minimum detectable sphere size is around 50 µm. This sensitivity was experimentally shown to be uneven along the long axis of the cavity. The unevenness was related to the electrical field strength of the standing wave at the resonant frequency. For practical industrial inspection of devices, multiple frequencies should be employed in view of the present discussion. © 2013 Wiley Periodicals, Inc. Electr Eng Jpn, 186(2): 61–67, 2014; Published online in Wiley Online Library (wileyonlinelibrary.com). DOI 10.1002/eej.22490
Thiophostone‐Derived Brønsted Acids in the Organocatalyzed Transfer Hydrogenation of Quinolines: Influence of the P‐Stereogenicity
Authors: Ferry Angélique , Stemper Jérémy , Marinetti Angela , Voituriez Arnaud , Guinchard Xavier 
Published: October 2013

AbstractA new approach to Brønsted acid organocatalysis is described and is based on the use of thiophosphonic acids possessing both a chiral backbone and a chiral phosphorus function. The influence of the phosphorus stereochemistry on the enantioselectivity proved to be crucial in the hydrogen transfer hydrogenation of 2‐phenylquinoline with Hantzsch esters.
Asymmetric Organocatalytic Protonation of Silyl Enolates Catalyzed by Simple and Original Betaines Derived from Cinchona Alkaloids
Authors: Claraz Aurélie , Landelle Grégory , Oudeyer Sylvain , Levacher Vincent 
Published: October 2013

AbstractThe asymmetric protonation of silyl enolates derived from tetralone, benzosuberone, and cyclohexanone has been successfully achieved by using simple and original betaine catalysts derived from Cinchona alkaloids (quinine and quinidine series) to afford the desired α‐substituted ketones in high yields and moderate enantioselectivities. The ease of implementation of this approach along with the easy accessibility of the betaine catalyst (four steps from cheap and commercially available quinine or quinidine) make this approach very appealing for the preparation of enantioenriched α‐monosubstituted carbonyl compounds.
Improvements in Symptoms Following Neuronavigated Repetitive Transcranial Magnetic Stimulation (rTMS) in Severe and Enduring Anorexia Nervosa: Findings from two Case Studies
Authors: McClelland Jessica , Bozhilova Natali , Nestler Steffen , Campbell Iain C. , Jacob Shirabdi , Johnson‐Sabine Eric , Schmidt Ulrike 
Published: October 2013

AbstractBackgroundAdvances in the treatment of anorexia nervosa (AN) are most likely to arise from targeted, brain‐directed treatments, such as repetitive transcranial magnetic stimulation (rTMS). We describe findings from two individuals with treatment‐resistant AN who received 19–20 sessions of neuronavigated, high frequency rTMS, applied to the left dorsolateral prefrontal cortex.MethodWithin‐session measures assessed changes pre‐rTMS, post‐rTMS in subjective eating disorder (ED) experiences. Weight, ED symptoms and mood were assessed pre‐treatment, post‐treatment and at 1 month follow‐up.ResultsIn both cases, there was improvement in ED symptomatology and mood after 19–20 sessions of neuronavigated rTMS, and these changes persisted or continued to improve at follow‐up. Within sessions, Patient A demonstrated a consistent reduction in subjective ED experiences, and Patient B a reduction in some ED related experiences.ConclusionsThese findings suggest that rTMS has potential as an adjunct to the treatment of AN and deserves further study. Copyright © 2013 John Wiley & Sons, Ltd and Eating Disorders Association.
Power consumption in spatial cognition
Authors: Odeh Maha , Zorba Nizar , Verikoukis Christos 
Published: October 2013

ABSTRACTMultiple input multiple output adds a new dimension to be exploited in cognitive radio by simultaneously serving several users. The spatial domain that is added through multiple input multiple output is another system resource that has to be optimised and shared when possible. In this paper, we present a spatial sharing that is carried out through zero‐forcing beamforming. Power consumption in such a scenario is discussed and compared with single‐user case to evaluate the feasibility of employing spatial cognition from the power perspective. Closed‐form expressions are derived for the consumed power and data rate at different transmission schemes. Finally, a joint power rate metric is deduced to provide a comprehensive measure of the expediency of spatial cognitive scenario. Copyright © 2013 John Wiley & Sons, Ltd.
A multimesh adaptive scheme for air quality modeling with the finite element method
Authors: Monforte Lluís , Pérez‐Foguet Agustí 
Published: October 2013

SUMMARYA multimesh adaptive scheme for convection–diffusion–reaction problems for a large number of components is presented. The problem is solved by splitting transport and reaction processes. This way, the evaluation of the nonreactive part for each component and the reaction at each node constitute independent tasks. This allows to discretize each component of the solution on a distinct computational mesh, adapted on the basis of its error indicator. The standard single‐mesh strategy is used for comparison. Simulations of a point emission in a 3D domain are presented. Low remeshing periods of the adaptive scheme are found to be optimal, in terms of computational cost and accuracy, for the nonreactive problem. Examples with several reaction terms, with an increase of the complexity, are then presented. Results show that the accuracy of single‐mesh and multimesh strategies are similar. Instead, the computational cost of the multimesh strategy is lower than the single‐mesh in the majority of the examples; this process is controlled by the stiff behavior of the reactive term. The problem size of the multimesh scheme is much lower, and therefore, larger spatial discretizations can be simulated for a given available memory. The efficiency of the multimesh strategy increases with the number of species and the number of species that develop a plume. Finally, an example of a punctual emission considering realistic values of the initial concentrations and using the Community Multiscale Air Quality‐CBO5 reaction model, which involves 62 components, is presented; the small‐scale structure of the different nitrogen components near the emitter is captured. Copyright © 2013 John Wiley & Sons, Ltd.
Sensory hyperinnervation and increase in NGF, TRPV1 and P2X3 expression in the epidermis following cast immobilization in rats
Authors: Sekino Y. , Nakano J. , Hamaue Y. , Chuganji S. , Sakamoto J. , Yoshimura T. , Origuchi T. , Okita M. 
Published: October 2013

AbstractBackgroundCast immobilization is known to induce pain in humans and experimental animal models; however, the detailed mechanisms underlying this pain have yet to be elucidated. Recently, several lines of evidence have indicated that morphological changes in sensory innervation and changes in the expression of pain‐related molecules in the epidermis are related to certain painful conditions. The aim of the present study was to temporally investigate the histological changes in the glabrous skin of the rat hind paw after 1, 2 and 4 weeks of ankle joint immobilization by casting.MethodsThe von Frey test and the plantar test were performed to examine noxious sensitivity of the skin. Immunohistochemical methods were used to assess sensory nerve fibre profiles and to examine the expression of the nerve growth factor (NGF), transient receptor potential vanilloid 1 (TRPV1) and P2X3 in the epidermis.ResultsCast immobilization produced a time‐dependent increase in mechanical and thermal sensitivity. In the plantar skin of immobilized rats, both myelinated A fibres and unmyelinated C fibres were increased. NGF, TRPV1 and P2X3 expression levels in the epidermis were also increased. Although the level of NGF expression did not display a meaningful change throughout the immobilization period, other changes became remarkable, depending on the period of immobilization.ConclusionsThe time course of the increase in peripheral nerve fibres and in the expression of TRPV1 and P2X3 paralleled the development of hypersensitivity, which suggests that histological changes of the skin following cast immobilization may have some relation to the resulting hypersensitivity.