bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: Advanced Electron Microscopy and Its Possibilities to Solve Complex Structures: Application to Transition Metal Oxides
Authors: Van Tendeloo Gustaaf , Hadermann Joke , Abakumov Artem M. , Antipov Evgeny V. 
Published: July 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Organometallic Chemistry of Bi‐ and Polymetallic Complexes
Authors: King Philip J. 
Published: July 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: DNA‐Based Routes to Semiconducting Nanomaterials
Authors: Houlton Andrew , Pike Andrew R. , Galindo Miguel Angel , Horrocks Benjamin R. 
Published: July 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Asymmetric Catalysis with Chiral Primary Amine‐Based Organocatalysts
Authors: Xu Li‐Wen , Luo Jie , Lu Yixin 
Published: July 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Substituent Effects on the Electronic Structure of Siloles
Authors: Zhan Xiaowei , Barlow Stephen , Marder Seth R. 
Published: July 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: N‐Heterocyclic Carbenes — Organocatalysts Displaying Diverse Modes of Action
Authors: Zeitler K. 
Published: July 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Amino Acid Promoted Ullmann‐Type Coupling Reactions and Their Applications in Organic Synthesis
Authors: Cai Qian , Zhang Hui , Zou Benli , Xie Xiaoan , Zhu Wei , He Gang , Wang Jing , Pan Xianhua , Chen Yu , Yuan Qiliang , et al. et al. 
Published: July 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Recent Developments in Alkyne Carbonylation
Authors: Doherty Simon , Knight Julian G. , Smyth Catherine H. 
Published: July 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Recent Advances in Two‐Phase Carbonylation
Authors: Selent Detlef 
Published: July 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Green Chemistry: C—C Coupling and Asymmetric Reduction by Innovative Catalysis
Authors: Wu Xiaofeng , Mo Jun , Li Xiaohong , Hyder Zeyn , Xiao Jianliang 
Published: July 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Recoverable, Soluble Polymer‐Supported Organic Catalysts
Authors: Benaglia M. 
Published: July 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Organocatalysis by Hydrogen‐Bonding Networks
Authors: Berkessel A. 
Published: July 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Asymmetric Organocatalysis on a Technical Scale: Current Status and Future Challenges
Authors: Groeger H. 
Published: July 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Biomimetic Organocatalytic C—C Bond Formations
Authors: Enders D. , Huettl M. R. M. , Niemeier O. 
Published: July 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Copper‐Mediated Aryl‐Aryl Couplings for the Construction of Oligophenylenes and Related Heteroaromatics.
Authors: Iyoda Masahiko 
Published: July 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Emerging Molecular Diversity from the Intramolecular Ugi Reaction: Iterative Efficiency in Medicinal Chemistry.
Authors: Hulme C. , Dietrich J. 
Published: July 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Polymerization Reactions in Porous Coordination Polymers
Authors: Uemura Takashi , Yanai Nobuhiro , Kitagawa Susumu 
Published: July 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: How Drug Photodegradation Studies Led to the Promise of New Therapies and Some Fundamental Carbanion Reaction Dynamics Along the Way
Authors: Cosa Gonzalo , Lukeman Matthew , Scaiano J. C. 
Published: July 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Coordination‐Driven Self‐Assembly of PEO‐Functionalized Perylene Bisimides: Supramolecular Diversity from a Limited Set of Molecular Building Blocks
Authors: Gebers Jan , Rolland Damien , Frauenrath Holger 
Published: July 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: The Assignment of Absolute Stereostructures through Quantum Chemical Circular Dichroism Calculations.
Authors: Bringmann Gerhard , Bruhn Torsten , Maksimenka Katja , Hemberger Yasmin 
Published: July 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Electric Microfield Distributions in Alkali Plasmas with Account of the Ion Structure
Authors: Sadykova S. P. , Ebeling W. , Valuev I. , Sokolov I. M. 
Published: July 2009

AbstractThe electric microfield distributions at the location of an ion have been calculated using a coupling parameter integration technique for Alkali plasma (Li+, Na+, K+, Rb+, Cs+) proposed by Ortner et al. [1] and Monte‐Carlo simulations. Electric microfield distributions are studied in a frame of the Hellmann‐Gurskii‐Krasko pseudopotential model, taking into account the quantum‐mechanical effects and the ion shell structure [2]. For determination of the radial distribution function the screened Hellmann‐Gurskii‐Krasko pseudopotential in the Debye approximation taking into account not only the quantum‐mechanical effects, the ion shell structure but screening field effects has been used [3]. For the Hellmann‐Gurskii‐Krasko pseudopotential model the results obtained for the microfield in the framework of the Ortner model are found in a good agreement with the Monte‐Carlo simulations (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Stability of resting frontal electroencephalogram (EEG) asymmetry and cardiac vagal tone in adolescent females exposed to child maltreatment
Authors: Miskovic Vladimir , Schmidt Louis A. , Georgiades Katholiki , Boyle Michael , MacMillan Harriet L. 
Published: July 2009

AbstractThe experience of child maltreatment is a known risk factor for the development of psychopathology. Structural and functional modifications of neural systems implicated in stress and emotion regulation may provide one mechanism linking early adversity with later outcome. The authors examined two well‐documented biological markers of stress vulnerability [resting frontal electroencephalogram (EEG) asymmetry and cardiac vagal tone] in a group of adolescent females exposed to child maltreatment (n = 38; M age = 14.47) and their age‐matched non‐maltreated (n = 25; M age = 14.00) peers. Maltreated females exhibited greater relative right frontal EEG activity and lower cardiac vagal tone than controls over a 6‐month period. In addition, frontal EEG asymmetry and cardiac vagal tone remained stable in the maltreated group across the 6 months, suggesting that the neurobiological correlates of maltreatment may not simply reflect dynamic, short‐term changes but more long lasting alterations. The present findings appear to be the first to demonstrate stability of two biologically based stress‐vulnerability measures in a maltreated population. Findings are discussed in terms of plasticity within the neural circuits of emotion regulation during the early childhood period and alternative causal models of developmental psychopathology. © 2009 Wiley Periodicals, Inc. Dev Psychobiol 51: 474–487, 2009
Structural and Magnetic Study of a Trinuclear MnII–GdIII–MnII Complex
Authors: Costes Jean‐Pierre , Garcia‐Tojal Javier , Tuchagues Jean‐Pierre , Vendier Laure 
Published: July 2009

AbstractThe synthesis, structural determination and magnetic study of a trinuclear MnII–GdIII–MnII complex involving a Schiff base ligand are described. The structural study demonstrates that the complex presents a linear arrangement of the Mn and Gd ions, with hexacoordinate Mn ions in slightly distorted or distorted trigonal prism environments and nine‐coordinate gadolinium ions. The Mn and Gd ions are linked by two phenoxido bridges for one Mn–Gd subunit and two phenoxido plus one nitrato bridges for the other Mn–Gd subunit. Ferromagnetic interactions operate in the complex. The best fit takes into account two different J constants and D and E zero‐field splitting terms. A strict 3d‐5d(Gd) orthogonality is not possible in the present complex because all 3d orbitals of the Mn ions are occupied, which does agree with the weak value of the JMn,Gd parameter. Oxidation of this complex does not yield the corresponding MnIII–GdIII–MnIII entity.(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)
Voltammetry of Os(VI)‐Modified Polysaccharides at Carbon Electrodes
Authors: Trefulka Mojmír , Paleček Emil 
Published: July 2009

AbstractWe show that polysaccharides (PSs, such as dextran and mannan) can be chemically modified by Os(VI) complexes, yielding electroactive adducts. Os(VI) complexes with different ligands (e.g., temed and 2,2′‐bipyridine) produced at pyrolytic graphite electrodes redox couples at different potentials suitable for “multicolor” labeling of PSs and for studies of ligand exchange kinetics. PS‐Os(VI)L adducts can be determined not only in their purified forms but also in the reaction mixtures.
Voltammetric Determination of Azidothymidine Using Silver Solid Amalgam Electrodes
Authors: Pecková Karolina , Navrátil Tomáš , Yosypchuk Bogdan , Moreira Josino Costa , Leandro Katia Christina , Barek Jiří 
Published: July 2009

AbstractA new simple and direct electroanalytical method was developed for the determination of azidothymidine in commercial pharmaceutical preparations. It is based on differential pulse voltammetry at silver solid amalgam electrode with polished surface (p‐AgSAE) or surface modified by mercury meniscus (m‐AgSAE). The electroreduction of azidothymidine in basic media at these electrodes gives rise to one irreversible cathodic peak. Its potential in 0.05 mol L−1 borate buffer, pH 9.3 at ca. −1050 mV is comparable to that using hanging mercury drop electrode (HMDE). Achieved limits of quantitation are in the 10−7 mol L−1 concentration range for both amalgam electrodes. According to the procedure based on the standard addition technique, the recoveries of known amounts of azidothymidine contained in pharmaceutical preparations available in capsules were 101.4±1.8% (m‐AgSAE), 100.3±3.5% (p‐AgSAE) and 102.0±1.0% (HMDE) (n=10). There was no significant difference between the values gained by proposed voltammetric methods and the HPLC‐UV recommended by the United States Pharmacopoeia regarding the mean values and standard deviations.
Preparation, Proton Conductivity and Mechanical Properties of Nafion 117–Zirconium Phosphate Sulphophenylphosphonate Composite Membranes
Authors: Casciola M. , Capitani D. , Donnadio A. , Frittella V. , Pica M. , Sganappa M. 
Published: July 2009

AbstractNafion–zirconium phosphate (ZrP) composite membranes, containing 20 to 40 wt.‐% ZrP were treated with aqueous solutions of meta‐sulphophenylphosphonic acid (H2SPP) in order to functionalise the filler particles with strongly acidic sulphonic groups. The functionalised samples (Nafion/ZrSPP) were characterised by 31P MAS NMR, water uptake determinations, stress–strain mechanical tests and conductivity measurements. The Nafion/ZrSPP membranes are more hydrophilic than Nafion 117 and stiffer than the parent Nafion/ZrP membranes: at room temperature, the elastic modulus of the membranes with 20 and 40 wt.‐% ZrP increases from 191 and 329 N mm–2 to 342 and 470 N mm–2, respectively, after functionalisation. At 100 °C and in the RH range of 30–90% the conductivity of the Nafion/ZrSPP membranes decreases with the increase in the filler loading, being however always higher than that of the parent Nafion/ZrP membranes and nearly coincident with that of Nafion 117. Conductivity measurements as a function of temperature in the range of 80–150 °C showed that, at 90% RH, the conductivity of the Nafion/ZrSPP membranes is stable up to 140 °C thus indicating a better dimensional stability of the composite membrane in comparison with neat Nafion 117.
Magnetotomography and Electric Currents in a Fuel Cell
Authors: Lustfeld H. , Reißel M. , Steffen B. 
Published: July 2009

AbstractMagnetotomography, applied to fuel cells, gives rise to several questions: first, how well can the electric current density in the fuel cell be reconstructed by measuring its external magnetic field? It is quite clear that the connection between magnetic field and current alone will lead to ambiguous results. Two further relations lead to unique reconstruction: the continuity equation and Ohm's law. Second, application of Ohm's law in the membrane electrode assembly (MEA) of a fuel cell – is it not a questionable procedure? We show that in the MEA Ohm's law is not needed, when applying a rather mild approximation, we call it the ‘thin MEA approximation'. The advantage of this is the linear relation between magnetic field and electric current density, not only in the neighbourhood of the operating point but over the whole range. Third, can a functional connection be derived between resolution of the current density and the precision requirements of the measurement devices? We present a procedure leading to a unique relation between the two. This procedure can be extended to finding the optimum measuring positions, thus essentially decreasing the number of measuring points, and thus the time scale of measurable dynamical disturbances, all this without a loss of fine resolution. We present explicit numerical results for two geometries, typical for DMFC and PEMFC fuel cells.
Maternal pre‐ and postnatal anxiety and infant temperament. The generation R study
Authors: Henrichs Jens , Schenk Jacqueline J. , Schmidt Henk G. , Velders Fleur P. , Hofman Albert , Jaddoe Vincent W.V. , Verhulst Frank C. , Tiemeier Henning 
Published: July 2009

AbstractThe aim of this study was to investigate whether maternal anxiety that is temporary or chronic during the pre‐ and postnatal period predicts infant temperament. Mothers of 2997 infants in a population‐based birth cohort reported levels of pregnancy‐specific anxiety (Pregnancy Outcome Questionnaire) and general anxiety symptoms (Brief Symptom Inventory) prenatal and at 6 months postnatal. Temperament characteristics were assessed by maternal report using the Infant Behavior Questionnaire—Revised when the infants were 6 months of age. Maternal pregnancy‐specific and general anxiety during the pre‐ and postnatal period were all independently associated with perceived infant temperamental difficulties. Chronically high maternal anxiety predicted the highest perceived infant activity level and negative affectivity. These findings show that different forms of maternal anxiety during both the pre‐ and postnatal period are independently related to perceived temperamental problems in infancy. They also emphasize the significance of chronic maternal anxiety for infant mental health. Copyright © 2009 John Wiley & Sons, Ltd.
Continuous‐time models, realized volatilities, and testable distributional implications for daily stock returns
Authors: Andersen Torben G. , Bollerslev Tim , Frederiksen Per , Ørregaard Nielsen Morten 
Published: July 2009

AbstractWe provide an empirical framework for assessing the distributional properties of daily speculative returns within the context of the continuous‐time jump diffusion models traditionally used in asset pricing finance. Our approach builds directly on recently developed realized variation measures and non‐parametric jump detection statistics constructed from high‐frequency intra‐day data. A sequence of simple‐to‐implement moment‐based tests involving various transformations of the daily returns speak directly to the importance of different distributional features, and may serve as useful diagnostic tools in the specification of empirically more realistic continuous‐time asset pricing models. On applying the tests to the 30 individual stocks in the Dow Jones Industrial Average index, we find that it is important to allow for both time‐varying diffusive volatility, jumps, and leverage effects to satisfactorily describe the daily stock price dynamics. Copyright © 2009 John Wiley & Sons, Ltd.
Physical aging and the creep behavior of acrylic bone cements
Authors: Kuzmychov Oleksii , Koplin Christof , Jaeger Raimund , Büchner Hubert , Gopp Udo 
Published: July 2009

AbstractThe creep deformation of two acrylic bone cements, Palacos® R+G and SmartSet® GHV, was investigated for different physical aging times ranging from 45 min to 2 ½ years. The experiments were carried out in a three‐point‐bending set‐up in 37°C Ringer's solution applying 10 MPa or 25 MPa creep loads. Both bone cements exhibit a significant decrease of their creep compliance with increasing physical aging time. The experimental data were analyzed with a creep law discussed in the context of physical aging by Struik, and a modified Burgers' model which can be used to separate the strain response of the bone cements into an elastic, a visco‐elastic and a creep component. The creep behavior of the bone cements could be described essentially with only one parameter of Struik's creep law. The analysis with the modified Burgers' model showed that physical aging influences all model parameters which are directly related to the mobility of the polymer chains. The effect of physical aging should be taken into account particularly if the mechanical performance of bone cements shortly after curing is investigated. © 2009 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 2009