bluuebunny/crossref_metadata_2025 huggingface dataset:
Structural changes and development of transport properties during the conversion of a polyimide membrane to a carbon membrane
Authors: Lua Aik Chong , Su Jincai
Published: March 2009

Kapton®100HN polyimide membranes were heat treated at temperatures ranging from 623 to 1073 K. The precursor and the heat‐treated membranes were characterized by thermogravimetric analysis, X‐ray diffraction, Raman spectroscopy, density measurement, nitrogen adsorption at 77 K, and single gas permeation. Compared with the precursor, the X‐ray diffraction patterns did not change greatly when the membranes were heat treated at 623–748 K. The membranes treated at 623–723 K showed similar gas permeation rates as the original polyimide membrane whereas those treated at 773–873 K showed remarkable increases in the gas permeances due to the decomposition of the polyimide. Two minimum ideal selectivities were found for the membranes treated at 673 and 723 K. An increase in the temperature from 873 to 1073 K increased the crystallinity and decreased the interplanar spacing in the carbon membranes which had microporous structures as shown by their Type I adsorption isotherms. The membranes treated at 773 K were deemed to be at an intermediate stage between polymer and amorphous carbon. By increasing the temperature from 773 to 873 K, the polyimide changed to a carbon membrane. The gas permeances for He, CO2, O2,N2, and CH4 were increased from 1.06 × 10−9, 1.10 × 10−9, 1.90 × 10−10, 5.70 × 10−11, and 5.55 × 10−11 to 2.68 × 10−8, 3.62 × 10−8, 9.98 × 10−9, 1.66 × 10−9, and 5.17 × 10−10 mol/(m2 s Pa), respectively. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009
Hydration and proton conduction in Nafion/ceramic nanocomposite membranes produced by solid‐state processing of powders from mechanical attrition
Authors: Moster Amanda L. , Mitchell Brian S.
Published: March 2009

A solid‐state method of Nafion/ceramic nanocomposite membrane preparation was used. Nanocomposite powders from Nafion pellets and a zirconium phosphate ceramic were formed by mechanical attrition. The powders were consolidated into membrane form by mechanical pressing. A decrease in the particle size and improved dispersion of the ceramic within the polymer phase were confirmed with scanning electron microscopy. An evaluation of membrane hydration by thermogravimetric analysis indicated that the prepared membranes had increased water uptake in comparison with a commercially available membrane. However, as the distribution of the ceramic was improved, the hydration of the sample was reduced. Low‐temperature differential scanning calorimetry indicated that the additional water contributed to an increase in the contents of both freezing and nonfreezing water in the membranes. Proton conductivity testing at various relative humidities and temperatures revealed that the prepared membranes had conductivities comparable to but somewhat lower than those of the commercial membranes. An increase in conductivity was seen with decreased particle size and improved dispersion of the ceramic. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009
When the best appears to be saved for last: Serial position effects on choice
Authors: Li Ye , Epley Nicholas
Published: March 2009

Decision‐makers often evaluate options sequentially due to constraints on attention, timing, or physical location of the options. Choosing the best option will therefore often depend on people's memories of the options. Because imperfect recall introduces uncertainty in earlier options, judgments of those options should regress toward the category mean as memory decays over time. Relatively desirable options will therefore tend to seem less desirable with time, and relatively undesirable options will tend to seem less undesirable with time. We therefore predicted that people will tend to select the first option in a set when choosing between generally undesirable options, and will tend to select the last when choosing between generally desirable options. We demonstrate these serial position effects in choices among paintings, American Idol audition clips, jellybeans, and female faces, provide evidence of its underlying mechanism, and explain how these findings build on existing accounts. Copyright © 2009 John Wiley & Sons, Ltd.
A microreactor for the study of biotransformations by a cross‐linked γ‐lactamase enzyme
Authors: Hickey Anne Marie , Ngamsom Bongkot , Wiles Charlotte , Greenway Gillian M. , Watts Paul , Littlechild Jennifer A.
Published: March 2009

A (+)‐γ‐lactamase was precipitated, cross‐linked and the resulting solid crushed prior to immobilisation within a capillary column microreactor. The microreactor was subsequently used to study enzyme stability, activity, kinetics and substrate specificity. The thermophilic (+)‐γ‐lactamase retained 100% of its initial activity at the assay temperature, 80°C, for 6 h and retained 52% activity after 10 h, indicating the advantage of immobilisation. This high stability of the immobilised enzyme provided the advantage that it could be utilised to screen many compounds in the microreactor system. This advantage overcame the fact that the immobilisation process affected enzyme kinetics and activity, which was reduced (by 70%) compared to the free enzyme. In general, the enzyme displayed similar substrate specificity to that found in a previous study for the free enzyme; however, enhanced activity was seen towards one substrate, acrylamide. The system developed correlates well with the free enzyme in batch assay and indicates the suitability of the system for enzyme substrate screening, allowing a significant reduction in cost, due to the reduced amounts of enzyme, substrates and other assay constituents required.
Educational software program for teaching modal testing
Authors: Jiménez Felipe , Huerta Mª. Consuelo
Published: March 2009

This article presents the didactic content and educational software that involves every phase of modal testing teaching. This tool provides a useful help. Theoretical examples can be generated at the first stages of the learning process. Real test data can be acquired and analyzed. Initial examples are used in model comparisons. © 2009 Wiley Periodicals, Inc. Comput Appl Eng Educ 18: 485–494, 2010; View this article online at wileyonlinelibrary.com; DOI 10.1002/cae.20205
Orientational Organization of Organic Semiconductors within Periodic Nanoscale Silica Channels: Modification of Fluorophore Photophysics through Hierarchical Self‐Assembly
Authors: Li Le‐Le , Sun Hao , Bai Yan‐Chun , Fang Chen‐Jie , Yan Chun‐Hua
Published: March 2009

Smart nanomaterials: The orientational organization of small organic semiconductors (anthracene, in this case) within periodic nanoscale silica channels (see figure) is achieved through a novel hierarchical self‐assembly approach. This elicits interesting optical effects and improved mechanical properties that could be of potential importance for functional materials.

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A novel hierarchical organic–inorganic self‐assembly approach is proposed in driving the orientational organization of small organic semiconductors (anthracene, in this case). A cationic surfactant with the special organic semiconductor anthracene at the hydrophobic tail was synthesized and used as both the structure‐directing agent and as functional nanobuilding blocks. The self‐assembly procedure was rapid and allowed for the uniform and molecular‐level controllable organization of the organic semiconductors within periodic nanoscale silica channels. A range of techniques were used to demonstrate that the photophysical and photochemical nature of anthracene is significantly altered in the inorganic host, consistent with orientational packing of the organic semiconductors and excimer formation within the channels, from which energy migration and significant emission occur. The nanocomposite has also been demonstrated to show an interesting selective sensor function with respect to small solvent molecules. We suggest that this method could be used to drive the assembly of a wide range of organic semiconductor guests, offering the development of a variety of useful, smart nanomaterials that are able to self‐assemble in a controllable and robust fashion.
ChemInform Abstract: The Crystal Structure of Rb2SeO4 at High Temperature.
Authors: Ghedia Stefan , Dinnebier Robert , Jansen Martin
Published: March 2009

ChemInform 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: On the Constitution of the Al‐Rich Part of the Al—Cr—Mn System
Authors: Grushko B. , Kowalski W. , Pavlyuchkov D. , Balanetskyy S. , Surowiec M.
Published: March 2009

ChemInform 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: Polyoxotungstate‐Encapsulated Gd6 and Yb10 Complexes.
Authors: Hussain Firasat , Gable Robert W. , Speldrich Manfred , Koegerler Paul , Boskovic Colette
Published: March 2009

ChemInform 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: Efficient Kinetic Resolution of Racemic Amino Aldehydes by Oxidation with N‐Iodosuccinimide.
Authors: Minato Daishirou , Nagasue Yoko , Demizu Yosuke , Onomura Osamu
Published: March 2009

ChemInform 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: Binaphthyl‐Modified Quaternary Phosphonium Salts as Chiral Phase‐Transfer Catalysts: Asymmetric Amination of β‐Keto Esters.
Authors: He Rongjun , Wang Xisheng , Hashimoto Takuya , Maruoka Keiji
Published: March 2009

ChemInform 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: Highly Diastereo‐ and Enantioselective Construction of Both Central and Axial Chiralities by Rh‐Catalyzed [2 + 2 + 2] Cycloaddition.
Authors: Shibata Takanori , Otomo Mayumi , Tahara Yu‐ki , Endo Kohei
Published: March 2009

ChemInform 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: Regio‐ and Stereoselective Ring Opening of Enantiomerically Enriched 2‐Aryl Oxetanes and 2‐Aryl Azetidines with Aryl Borates.
Authors: Bertolini Ferruccio , Crotti Stefano , Di Bussolo Valeria , Macchia Franco , Pineschi Mauro
Published: March 2009

ChemInform 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: Microwave‐Assisted Vilsmeier—Haack Formylation of Aromatic Substrates.
Authors: Ghosh Kumaresh , Adhikari Suman
Published: March 2009

ChemInform 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: p‐MeOC6H4N2+BF4‐/TiCl3: A Novel Initiator for Halogen Atom‐Transfer Radical Reactions in Aqueous Media.
Authors: Cao Lidong , Li Chaozhong
Published: March 2009

ChemInform 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: Facile Method for the Synthesis of Vicinal Azidoiodides by the Reaction of the NaN3—I2 System with Unsaturated Compounds.
Authors: Terent'ev Alexander O. , Krylov Igor B. , Kokorekin Vladimir A. , Nikishin Gennady I.
Published: March 2009

ChemInform 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: Versatile Friedel—Crafts‐Type Alkylation of Benzene Derivatives Using a Molybdenum Complex/ortho‐Chloranil Catalytic System.
Authors: Yamamoto Yoshihiko , Itonaga Kouhei
Published: March 2009

ChemInform 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: Silica‐Supported Perchloric Acid (HClO4—SiO2): An Efficient Catalyst for the Preparation of β‐Amido Carbonyl Compounds Using Multicomponent Reactions.
Authors: Shaterian Hamid Reza , Hosseinian Asghar , Ghashang Majid
Published: March 2009

ChemInform 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: Cyclopropanation Mediated by Lithium Iodide of Electron‐Deficient Alkenes with Activated Dibromomethylene Compounds.
Authors: Kawai Daisuke , Kawasumi Katsuaki , Miyahara Tsukasa , Hirashita Tsunehisa , Araki Shuki
Published: March 2009

ChemInform 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: Synthesis of Alkynyl Ethers and Low‐Temperature Sigmatropic Rearrangement of Allyl and Benzyl Alkynyl Ethers.
Authors: Sosa Juan R. , Tudjarian Armen A. , Minehan Thomas G.
Published: March 2009

ChemInform 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: Environmentally Benign Nucleophilic Substitution Reactions.
Authors: Vogel Philip , Figueira Sarah , Muthukrishnan Sivaramakrishnan , Mack James
Published: March 2009

ChemInform 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: A Highly Efficient and Recyclable Ionic Liquid Anchored Pyrrolidine Catalyst for Enantioselective Michael Additions.
Authors: Miao Tao , Wang Lei , Li Pinhua , Yan Jincan
Published: March 2009

ChemInform 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 N‐ and O‐Arylations with Arylboronic Acids in a Continuous Flow Microreactor: A New Avenue for Efficient Scalability.
Authors: Singh Brajendra K. , Stevens Christian V. , Acke Davy R. J. , Parmar Virinder S. , Van der Eycken Erik V.
Published: March 2009

ChemInform 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: LiBr: A Mild Lewis Acid Catalyst for Efficient One‐Pot Synthesis of α‐Amino Nitriles.
Authors: Suresh Anil Saini , Sandhu Jagir S.
Published: March 2009

ChemInform 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: Highly meso‐Diastereoselective Pinacol Coupling of Aromatic Aldehydes Mediated by Al Powder/Copper Sulfate in Water.
Authors: Mitoma Yoshiharu , Hashimoto Iwao , Simion Cristian , Tashiro Masashi , Egashira Naoyoshi
Published: March 2009

ChemInform 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: Synthesis of Fluorenones from Aromatic Aldoxime Ethers and Aryl Halides by Palladium‐Catalyzed Dual C—H Activation and Heck Cyclization.
Authors: Thirunavukkarasu Vedhagiri S. , Parthasarathy Kanniyappan , Cheng Chien‐Hong
Published: March 2009

ChemInform 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: Hydrogen‐Bond‐Supported 3D Networks: Two Different Polymeric Structures Featuring Chlorine Atoms as Ligands and as Anions and Investigations as Epoxide Catalysts.
Authors: Luan Yi , Wang Ge , Luck Rudy L. , Wang Yingnan , Xiao Han , Ding Hangjun
Published: March 2009

ChemInform 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: 3‐(Substituted aryl)‐1‐(benzofuran‐2‐yl)‐2‐propenones. Part 1. Synthesis and Characterization of Some Novel Chalcones.
Authors: Coskun Demet , Ahmedzade Misir
Published: March 2009

ChemInform 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: Highly Regioselective Synthesis of Polysubstituted Pyrroles Through Three‐Component Reaction Induced by Low‐Valent Titanium Reagent.
Authors: Dou Guolan , Shi Chunling , Shi Daqing
Published: March 2009

ChemInform 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: Reactions of 2‐Pyrones with 7‐Aminoindazole: The First Synthesis of N‐(1H‐7‐Indazolyl)‐pyridinones.
Authors: Rakib E. M. , Bouissane L. , Hannioui A. , Benchidmi M. , Essassi E. M.
Published: March 2009

ChemInform 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: Microwave‐Enhanced Reactions of 4‐Amino‐5‐mercapto‐1,2,4‐triazoles with Benzoyl Chloride and Aromatic Aldehydes.
Authors: Bai Yinjuan , Zhao Guifang , Li Chunyuan , Zhao Shuxia , Shi Zhen
Published: March 2009

ChemInform 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: Synthesis of Biscoumarins from 4‐Hydroxycoumarin and Aromatic Aldehydes — A Comparative Assessment of Percentage Yield under Thermal and Microwave‐Assisted Conditions.
Authors: Qadir Saima , Dar Aijaz Ahmad , Khan Khaliquz Zaman
Published: March 2009

ChemInform 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: Ionic Liquid Mediated Synthesis of Coumarin‐3‐carboxylic Acids via Knoevenagel Condensation of Meldrum′s Acid with ortho‐Hydroxyaryl Aldehydes.
Authors: Darvatkar Nitin B. , Deorukhkar Amol R. , Bhilare Sachin V. , Raut Dilip G. , Salunkhe Manikrao M.
Published: March 2009

ChemInform 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: Novel Synthesis of 2,2‐Dialkyl‐3‐dialkylamino‐2,3‐dihydro‐1H‐naphtho[2,1‐b]pyrans.
Authors: Huang Po‐Jung Jimmy , Cameron T. Stanley , Jha Amitabh
Published: March 2009

ChemInform 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: MAOS Protocols for the General Synthesis and Lead Optimization of 3,6‐Disubstituted‐[1,2,4]triazolo[4,3‐b]pyridazines.
Authors: Aldrich Leslie N. , Lebois Evan P. , Lewis L. Michelle , Nalywajko Natalia T. , Niswender Colleen M. , Weaver C. David , Conn P. Jeffrey , Lindsley Craig W.
Published: March 2009

ChemInform 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: A One‐Step Synthesis of 1‐Alkylpyrazolo[5,4‐d]pyrimidines.
Authors: Boyd Scott , Campbell Leonie , Liao Wensheng , Meng Qinghong , Peng Zuozhong , Wang Xiaoping , Waring Michael J.
Published: March 2009

ChemInform 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: Synthesis of New 2‐Aryl‐Substituted 2,3‐Dihydroquinazoline‐4(1H)‐ones under Solvent‐Free Conditions, Using Molecular Iodine as a Mild and Efficient Catalyst.
Authors: Rostamizadeh Shahnaz , Amani Ali Mohammad , Aryan Reza , Ghaieni Hamid Reza , Shadjou Nasrin
Published: March 2009

ChemInform 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: Efficient Synthesis of Quinoxaline Derivatives Catalyzed by p‐Toluenesulfonic Acid under Solvent‐Free Conditions.
Authors: Shi Da‐Qing , Dou Guo‐Lan
Published: March 2009

ChemInform 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: Synthesis and Preliminary Pharmacological Evaluation of N‐2‐(4‐(4‐ (2‐Substitutedthiazol‐4‐yl)piperazin‐1‐yl)‐2‐oxoethyl)acetamides as Novel Atypical Antipsychotic Agents.
Authors: Sekhar K. V. G. Chandra , Rao V. S. , Vyas D. Ravi Kumar , Kumar M. Murali Krishna
Published: March 2009

ChemInform 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: One‐Pot Synthesis of 3‐Oxo‐3,4‐dihydroquinoxalines Bearing a Sulfonamide or an Amide Group.
Authors: Alizadeh Abdolali , Babaki Mohadeseh , Zohreh Nasrin , Rezvanian Atieh
Published: March 2009

ChemInform 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: Ring‐Closing Metathesis for the Synthesis of Novel 9‐ and 10‐Membered Silicon‐Containing Benzo‐fused Heterocycles.
Authors: Scalzullo Stefania M. , Islam Rafique Ul Islam Rafique Ul , Morgans Garreth L. , Michael Joseph P. , van Otterlo Willem A. L.
Published: March 2009

ChemInform 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: Synthesis of Diphenyl(nitroaryl)phosphine Oxides via Oxidative Nucleophilic Substitution of Hydrogen in Nitroarenes with Diphenylphosphine Anion.
Authors: Makosza Mieczyslaw , Paszewski Maciej , Sulikowski Daniel
Published: March 2009

ChemInform 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: Chemical Modifications of Natural Triterpenes—Glycyrrhetinic and Boswellic Acids: Evaluation of Their Biological Activity.
Authors: Rao G. S. R. Subba , Kondaiah Paturu , Singh Sanjay K. , Ravanan Palaniyandi , Sporn Michael B.
Published: March 2009

ChemInform 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: Modular Phosphine‐Aminophosphine Ligands Based on Chiral 1,2,3,4‐Tetrahydro‐1‐naphthylamine Backbone: A New Class of Practical Ligands for Enantioselective Hydrogenations.
Authors: Qiu Min , Hu Xiang‐Ping , Huang Jia‐Di , Wang Dao‐Yong , Deng Jun , Yu Sai‐Bo , Duan Zheng‐Chao , Zheng Zhuo
Published: March 2009

ChemInform 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: 4‐(Pyridin‐2‐yl)thiazol‐2‐yl Thioglycosides as Bidentate Ligands for Oligosaccharide Synthesis via Temporary Deactivation.
Authors: Pornsuriyasak Papapida , Rath Nigam P. , Demchenko Alexei V.
Published: March 2009

ChemInform 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: First Example of the Carbon‐Ferrier Rearrangement of Glycals with Isocyanides: A Novel Synthesis of C‐Glycosyl Amides.
Authors: Yadav J. S. , Reddy B. V. Subba , Chary D. Narasimha , Madavi C. , Kunwar A. C.
Published: March 2009

ChemInform 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: Structure Revision of Spiroleucettadine, a Sponge Alkaloid with a Bicyclic Core Meager in H‐Atoms.
Authors: White Kimberly N. , Amagata Taro , Oliver Allen G. , Tenney Karen , Wenzel Philip J. , Crews Phillip
Published: March 2009

ChemInform 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: Evaluating the Potential of Vacuolar ATPase Inhibitors as Anticancer Agents and Multigram Synthesis of the Potent Salicylihalamide Analogue Saliphenylhalamide (V).
Authors: Lebreton Sylvain , Jaunbergs Janis , Roth Michael G. , Ferguson Deborah A. , De Brabander Jef K.
Published: March 2009

ChemInform 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: Pyrrospirones A and B, Apoptosis Inducers in HL‐60 Cells, from an Endophytic Fungus, Neonectria Ramulariae Wollenw KS‐246.
Authors: Shiono Yoshihito , Shimanuki Keiko , Hiramatsu Fuminori , Koseki Takuya , Tetsuya Murayama , Fujisawa Nozomi , Kimura Ken‐ichi
Published: March 2009

ChemInform 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: Spontaneous Compositional Nanopatterning in Li‐Containing Perovskite Oxides.
Authors: Guiton Beth S. , Davies Peter K.
Published: March 2009

ChemInform 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: Synthesis of KTaxNb1‐xO3 (KTN) Powders and Thin Films by Polymeric Precursor Method.
Authors: Simon Q. , Bouquet V. , Perrin A. , Guilloux‐Viry M.
Published: March 2009

ChemInform 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: Design at the Atomic Level: Generation of Novel Hybrid Biaryloxazolidinones as Promising New Antibiotics.
Authors: Johnson Graham , et al. et al.
Published: March 2009

ChemInform 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: Discovery of Novel, Potent and Bioavailable Proline‐Urea Based Macrocyclic HCV NS3/4A Protease Inhibitors.
Authors: Raboisson Pierre , et al. et al.
Published: March 2009

ChemInform 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: A Neutron Diffraction Study of RMn2O5 Multiferroics
Authors: Radaelli P. G. , Chapon L. C.
Published: March 2009

ChemInform 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: Order Parameters and Phase Diagrams of Multiferroics
Authors: Harris A. B. , Aharony Amnon , Entin‐Wohlman Ora
Published: March 2009

ChemInform 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: Nanocrystal Plasma Polymerization: From Colloidal Nanocrystals to Inorganic Architectures
Authors: Cademartiri Ludovico , Ghadimi Arya , Ozin Geoffrey A.
Published: March 2009

ChemInform 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: Composite Layer‐by‐Layer (LBL) Assembly with Inorganic Nanoparticles and Nanowires
Authors: Srivastava Sudhanshu , Kotov Nicholas A.
Published: March 2009

ChemInform 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: Synthesis and Properties of Nitro‐1,2,3‐triazoles
Authors: Vereschagin L. I. , Pokatilov F. A. , Kizhnyaev V. N.
Published: March 2009

ChemInform 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: Chemical Properties of Cyanoacetanilides ad Synthesis of Biologically Active Compounds Around Them
Authors: Dyachenko V. D. , Tkachiov R. P. , Bityukova O. S.
Published: March 2009

ChemInform 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: Synthetic Studies of Heterocyclic Natural Products
Authors: Joullie Madeleine M. , Berritt Simon , Forbeck Erin M.
Published: March 2009

ChemInform 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: Aromatic Acetylation
Authors: Guisnet Michel , Guidotti Matteo
Published: March 2009

ChemInform 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: Hypervalent Aryl‐, Alkynyl‐, and Alkenyl‐λ3‐bromanes
Authors: Ochiai Masahito
Published: March 2009

ChemInform 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 Nature Morphs Reptide Scaffolds into Antibiotics
Authors: Nolan Elizabeth M. , Walsh Christopher T.
Published: March 2009

ChemInform 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: Well‐Defined Polynuclear Heterobimetallic Complexes as Precursors for Ceramic and Magnetic Materials
Authors: Szafert Slawomir , John Lukasz , Sobota Piotr
Published: March 2009

ChemInform 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.
Candidate gene copy number analysis by PCR and multicapillary electrophoresis
Authors: Szantai Eszter , Elek Zsuzsanna , Guttman András , Sasvari‐Szekely Maria
Published: March 2009

Genetic polymorphisms are often considered as risk factors of complex diseases serving as valuable and easily detectable biomarkers, also stable during the whole lifespan. A novel type of genetic polymorphism has been identified just recently, referred to as gene copy number variation (CNV) or copy number polymorphism. CNV of glycogen synthase kinase 3 beta and its adjacent gene, Nr1i2 (pregnane X receptor isoform), has been reported to associate with bipolar depression. In our study we introduced multicapillary electrophoresis for gene copy number analysis as an affordable alternative to real‐time PCR quantification with TaqMan gene probes. Our results show the reliability of the developed method based on conventional PCR followed by separation of products by multicapillary electrophoresis with quantitative evaluation. This method can be readily implemented for the analysis of candidate gene CNVs in high throughput clinical laboratories and also in personalized medicine care of depression‐related risk factors.
Proteomic analysis of osteogenic differentiation of dental follicle precursor cells
Authors: Morsczeck Christian , Petersen Jørgen , Völlner Florian , Driemel Oliver , Reichert Torsten , Beck Hans Christian
Published: March 2009

Recently, there has been an increased interest in unravelling the molecular mechanisms and cellular pathways controlling the differentiation and proliferation of human stem cell lines. Proteome analysis has proven to be an effective approach to comprehensive analysis of the regulatory network of differentiation. In the present study we applied 2‐DE combined with capillary‐LC‐MS/MS analysis to profile differentially regulated proteins upon differentiation of dental follicle precursor cells (DFPCs). Out of 115 differentially regulated proteins, glutamine synthetase, lysosomal proteinase cathepsin B proteins, plastin 3 T‐isoform, beta‐actin, superoxide dismutases, and transgelin were found to be highly up‐regulated, whereas cofilin‐1, pro‐alpha 1 collagen, destrin, prolyl 4‐hydrolase and dihydrolipoamide dehydrogenase were found to be highly down‐regulated. The group of up‐regulated proteins is associated with actin‐bundling and defence against oxidative cellular stress, whereas down‐regulated proteins were associated with collagen biosynthesis. Bioinformatic analyses of the entire data set confirmed these findings that represent significant steps towards the understanding of DFPC differentiation. The bioinformatic analyses suggest that proteins associated with cell cycle progression and protein metabolism were down‐regulated and proteins involved in catabolism, cell motility and biological quality were up‐regulated. These results display the general physiological state of DFPCs before and after osteogenic differentiation. We also identified regulatory proteins, such as the transcription factors TP53 and Sp‐1, associated with the differentiation process. Further studies will investigate the impact of identified regulatory proteins for cell proliferation and osteogenic differentiation in DFPCs.
Pounding force assessment in performance‐based design of bridges
Authors: Vega Jaime , del Rey Ignacio , Alarcon Enrique
Published: March 2009

Bridges with deck supported on either sliding or elastomeric bearings are very common in mid‐seismicity regions. Their main seismic vulnerabilities are related to the pounding of the deck against abutments or between the different deck elements. A simplified model of the longitudinal behavior of those bridges will allow to characterize the reaction forces developed during pounding using the Pacific Earthquake Engineering Research Center framework formula. In order to ensure the general applicability of the results obtained, a large number of system parameter combinations will be considered. The heart of the formula is the identification of suitable intermediate variables. First, the pseudo acceleration spectral value for the fundamental period of the system (Sa(Ts)) will be used as an intensity measure (IM). This IM will result in a very large non‐explained variability of the engineering demand parameter. A portion of this variability will be proved to be related to the relative content of high‐frequency energy in the input motion. Two vector‐valued IMs including a second parameter taking this energy content into account will then be considered. For both of them, a suitable form for the conditional intensity dependence of the response will be obtained. The question of which one to choose will also be analyzed. Finally, additional issues related to the IM will be studied: its applicability to pulse‐type records, the validity of scaling records and the sufficiency of the IM. Copyright © 2009 John Wiley & Sons, Ltd.
Hepatitis B and C virus coinfection: A novel model system reveals the absence of direct viral interference #
Authors: Bellecave Pantxika , Gouttenoire Jérôme , Gajer Markus , Brass Volker , Koutsoudakis George , Blum Hubert E. , Bartenschlager Ralf , Nassal Michael , Moradpour Darius
Published: March 2009

Coinfection with hepatitis B virus (HBV) and hepatitis C virus (HCV) has been associated with severe liver disease and frequent progression to cirrhosis and hepatocellular carcinoma. Clinical evidence suggests reciprocal replicative suppression of the two viruses, or viral interference. However, interactions between HBV and HCV have been difficult to study due to the lack of appropriate model systems. We have established a novel model system to investigate interactions between HBV and HCV. Stable Huh-7 cell lines inducibly replicating HBV were transfected with selectable HCV replicons or infected with cell culture–derived HCV. In this system, both viruses were found to replicate in the same cell without overt interference. Specific inhibition of one virus did not affect the replication and gene expression of the other. Furthermore, cells harboring replicating HBV could be infected with cell culture–derived HCV, arguing against superinfection exclusion. Finally, cells harboring replicating HBV supported efficient production of infectious HCV. Conclusion: HBV and HCV can replicate in the same cell without evidence for direct interference in vitro. Therefore, the viral interference observed in coinfected patients is probably due to indirect mechanisms mediated by innate and/or adaptive host immune responses. These findings provide new insights into the pathogenesis of HBV–HCV coinfection and may contribute to its clinical management in the future. (Hepatology 2009.)
CCR2 promotes hepatic fibrosis in mice #
Authors: Seki Ekihiro , de Minicis Samuele , Inokuchi Sayaka , Taura Kojiro , Miyai Katsumi , van Rooijen Nico , Schwabe Robert F. , Brenner David A.
Published: March 2009

Chemokines and chemokine receptors contribute to the migration of hepatic stellate cells (HSCs) and Kupffer cells, two key cell types in fibrogenesis. Here, we investigate the role of CCR2, the receptor for monocyte chemoattractant protein (MCP)-1, MCP-2, and MCP-3, in hepatic fibrosis. Hepatic CCR2, MCP-1, MCP-2, and MCP-3 messenger RNA expression was increased after bile duct ligation (BDL). Both Kupffer cells and HSCs, but not hepatocytes, expressed CCR2. BDL- and CCl4-induced fibrosis was markedly reduced in CCR2−/− mice as assessed through collagen deposition, α-smooth muscle actin expression, and hepatic hydroxyproline content. We generated CCR2 chimeric mice by the combination of clodronate, irradiation, and bone marrow (BM) transplantation allowing full reconstitution of Kupffer cells, but not HSCs, with BM cells. Chimeric mice containing wild-type BM displayed increased macrophage recruitment, whereas chimeric mice containing CCR2−/− BM showed less macrophage recruitment at 5 days after BDL. Although CCR2 expressed in the BM enhanced macrophage recruitment in early phases of injury, CCR2 expression on resident liver cells including HSCs, but not on the BM, was required for fibrogenic responses in chronic fibrosis models. In vitro experiments demonstrated that HSCs deficient in CCR2−/− or its downstream mediator p47phox−/− did not display extracellular signal-regulated kinase and AKT phosphorylation, chemotaxis, or reactive oxygen species production in response to MCP-1, MCP-2, and MCP-3. Conclusion: Our results indicate that CCR2 promotes HSC chemotaxis and the development of hepatic fibrosis. (Hepatology 2009.)