bluuebunny/crossref_metadata_2025 huggingface dataset:
A complete sample of low polarization CSO/MSO
Authors: Cassaro P. , Dallacasa D. , Stanghellini C.
Published: February 2009

The selection of a complete sample of Compact Symmetric Objects (CSOs) is in progress. The sample of candidates has been obtained on the basis of the low fractional polarization of the CSOs. About 60 % of the candidates has been identified as CSO/MSO, and observations are in progress to determine the radio morphology of the sources with unknown structure (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
The building blocks of young AGNs: A progress report on follow‐up projects with the CORALZ sample
Authors: Mack K.‐H. , Snellen I.A.G. , Schilizzi R.T. , Vries N. de
Published: February 2009

This paper summarizes some of the ongoing projects on the CORALZ sample, the first statistically complete sample of young radio galaxies. The low redshift of the sources in the sample (z < 0.16) makes them excellent targets for a comprehensive and homogeneous follow‐up in virtually all bands of the electromagnetic spectrum. Here we report on the almost completed radio continuum observations which confirm the relatively young ages of the sources in the CORALZ sample. The radio spectra in addition with new measurements at 250 GHz indicate a large fraction of sources with excess mm‐emission, probably due to radiation of cold dust. These sources are also excellent candidates for detection ofmolecular gas, which we have traced through CO observations in the 3‐mm band in several cases. Additional molecules as H2O or OH are being observed. The atomic gas content is disclosed by H I absorption observations (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Preparation of multi‐frequency monitoring of compact radio sources with the KVN
Authors: Sohn B.W. , Oh K.S. , Jung M.Y. , Jung T.H. , Lee S.S.
Published: February 2009

The Korean VLBI network is the first VLBI network in Korea dedicated to mm‐VLBI. Its multi‐frequency phase referencing technique ensures high image sensitivity and high temporal resolution observations. Here we outline our research plans of compact young radio sources with this new facility (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Testing Homogeneity of Two Zero‐inflated Poisson Populations
Authors: Tse Siu Keung , Chow Shein Chung , Lu Qingshu , Cosmatos Dennis
Published: February 2009

The problem of testing treatment difference in the occurrence of a safety parameter in a randomized parallel‐group comparative clinical trial under the assumption that the number of occurrence follows a zero‐inflated Poisson (ZIP) distribution is considered. Likelihood ratio tests (LRT) for homogeneity of two ZIP populations are derived under the hypotheses that (i) there is no difference in inflation parameters, (ii) there is no difference in non‐zero means; and (iii) there is no difference in both inflation parameters and non‐zero means. Approximate formulas for sample size calculation are also obtained for achieving a desired power for detecting a clinically meaningful difference under the corresponding alternative hypotheses. An example concerning the assessment of the gastrointestinal (GI) safety in terms of the number of erosion counts of a newly developed compound for the treatment of osteoarthritis and rheumatoid arthritis is given for illustration purpose (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Synthesis, Characterization and Electrochemical Properties of Stable Osmabenzenes Containing PPh3 Substituents
Authors: Zhang Hong , Wu Liqiong , Lin Ran , Zhao Qianyi , He Guomei , Yang Fangzu , Wen Ting Bin , Xia Haiping
Published: February 2009

Progress in osmabenzene chemistry: The new stable osmabenzene phosphonium salts can be easily obtained from the reaction of [OsX2(PPh3)3] with HCCCH(OH)CCH, which constitutes a valuable addition to previous metallabenzene synthetic methodologies (see scheme). The redox behavior of several osmabenzenes with different co‐ligands has been investigated.

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Treatment of [OsCl2(PPh3)3] with HCCCH(OH)CCH/PPh3 produces the osmabenzene [Os{CHC(PPh3)CHC(PPh3)CH}Cl2(PPh3)2][OH] (2), which is air stable in both solution and solid state. The key intermediate of the one‐pot reaction, [OsCl2{CHC(PPh3)CH(OH)CCH}(PPh3)2] (3), and the related complex [Os(NCS)2{CHC(PPh3)CH(OH)CCH}(PPh3)2] (7) have been isolated and characterized, further supporting the proposed mechanisms for the reaction. Reactions of 3 with PPh3, NaI, and NaSCN give osmabenzene 2, iodo‐substituted osmabenzene [Os{CHC(PPh3)CHCICH}I2(PPh3)2] (4), and thiocyanato‐substituted osmabenzene [Os{CHC(PPh3)CHC(SCN)CH}(NCS)2(PPh3)2] (5) respectively. Similarly, reaction of [OsBr2(PPh3)3] with HCCCH(OH)C CH in THF produces [OsBr2{CHC(PPh3)CH(OH)CCH}(PPh3)2] (9), which reacts with PPh3/Bu4NBr to give osmabenzene [Os{CHC(PPh3)CHC(PPh3)CH}Br2(PPh3)2]Br (10). Ligand substitution reactions of 2 produce a series of new stable osmabenzenes 11–17. An electrochemical study shows that osmabenzenes 2, 12, and 14–17 have interesting different electrochemical properties due to the different co‐ligand. The oxidation potentials of complexes 2, 12, 16, and 17 with Cl, NCS, and N(CN)2 ligands gradually positively shift in the sequence of Cl<NCS<N(CN)2. Among the six compounds, only 12 and 17 undergo a well‐behaved, nearly reversible and a quasi‐reversible reduction process, respectively, indicating that two NCS or N(CN)2 ligands contribute to the stabilization of their reduced states.
The Bis(pentafluoroethyl)phosphinous Acid (C2F5)2POH
Authors: Hoge Berthold , Bader Julia , Beckers Helmut , Kim Yong Seol , Eujen Reint , Willner Helge , Ignatiev Nikolai
Published: February 2009

Phosphinous acid or phosphane oxide? Both tautomers of (C2F5)2POH (see picture) are found in the neat liquid, whereas only phosphinous acid is present in the gas phase or in solution. The synthesis starting from (C2F5)3PF2, the thermodynamics of the tautomerization, and the detection and thermodynamics of the cis‐/trans‐POH rotamers of the acid are described.

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The industrial product (C2F5)3PF2 is transformed into the phosphinic acid chloride (C2F5)2P(O)Cl, which reacts with an excess of Bu3SnH in a clean, multistep reaction to give the stannyl derivative (C2F5)2POSnBu3. Subsequent treatment with gaseous HBr leads to the formation of (C2F5)2POH, which is isolated in 70 % yield. Besides (CF3)2POH, bis(pentafluoroethyl)phosphinous acid, (C2F5)2POH, represents the second known example of a phosphinous acid that is predicted by using density functional theory calculations at the B3PW91/6–311G(3d,p) level to be more stable than the phosphane oxide tautomer, the energy difference being 11.7 kJ mol−1. Only the phosphinous acid isomer is detectable in the gas phase and in solution. However, investigations of the neat liquid reveal a temperature‐dependent tautomeric equilibrium with the phosphane oxide isomer (C2F5)2P(O)H, which is characterized by vibrational and multinuclear NMR spectroscopic methods in combination with quantum‐chemical calculations.
Radical and Radical–Ionic Multicomponent Processes
Authors: Godineau Edouard , Landais Yannick
Published: February 2009

All in one pot! Radical, radical–ionic, and radical–organometallic MCR are highly convergent processes, representing a useful pathway to molecular and structural diversity (see scheme). This concept article highlights recent developments in the field and shows the potential of the strategy for the economical elaboration of various kinds of organic substrates.

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Progress in multicomponent reactions (MCRs) based on ionic and organometallic processes has recently allowed the synthesis, with high efficiency, of large collections of drug‐like molecules. In contrast, MCRs based on cascade radical reactions appear to have attracted, so far, much less interest. This concept article highlights the latest progress in the field and underlines the potential of such an approach. The collected examples demonstrate that radical and radical–ionic MCRs are highly convergent processes leading to useful structural diversity.
Ligand Selection in RuII Complexes for Direct One‐Electron Photooxidation of Guanine: A Combined Computational and Experimental Study
Authors: Boggio‐Pasqua Martial , Vicendo Patricia , Oubal Mohamed , Alary Fabienne , Heully Jean‐Louis
Published: February 2009

Making the right ligand selection: DFT calculations of Gibbs energies for the one‐electron photooxidation of guanine by six RuII–polypyridine complexes are reported. The theoretical predictions are compared with new EPR spectra. Our theoretical calculations confirm the experimental observations that the direct photooxidation of guanine by [Ru(bpz)3]2+, [Ru(tap)3]2+, and [Ru(bpz)2(dppz)]2+ is thermodynamically favorable, but is unfavorable with [Ru(bpy)3]2+, [Ru(phen)3]2+, and [Ru(bpy)2(dppz)]2+ (see figure).

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ChemInform Abstract: Acidic Salt of the Decaoxodiperiodic Acid: NiH4I2O10×6H2O, ZnH4I2O10×6H2O and MgH4I2O10×6H2O; Crystal Structures, Vibrational Spectra and Thermal Decomposition.
Authors: Aleksandrova Margarita , Haeuseler Hartmut , Jaquet Ralph , Wagener Michael
Published: February 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: CsB3GeO7 and K2B2Ge3O10: Explorations of New Second‐Order Nonlinear Optical Materials in the Borogermanate Systems.
Authors: Kong Fang , Jiang Hai‐Long , Hu Ting , Mao Jiang‐Gao
Published: February 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: Na3PbII[B(O3POH)4]: An Alkali‐Metal Lead Borophosphate with Heterocubane‐Like Units Na3PbO4.
Authors: Hoffmann Stefan , Jeazet Harold B. Tanh , Menezes Prashanth W. , Prots Yurii , Kniep Ruediger
Published: February 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 Strongly Correlated Electron Hydride Ce2Ni2MgH7.7.
Authors: Chevalier Bernard , Krolak Aleksandra A. , Bobet Jean‐Louis , Gaudin Etienne , Weill Francois , Hermes Wilfried , Poettgen Rainer
Published: February 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: La8Br7Ni4: Ribbons of Ni Hexagons in Condensed La6 Trigonal Prisms.
Authors: Zheng Chong , Mattausch Hanjuergen , Hoch Constantin , Simon Arndt
Published: February 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: Chiral Cationic Pd‐Phosphinooxazolidine Catalysts for a Highly Efficient Asymmetric Diels—Alder Reaction in Ionic Liquids.
Authors: Nakano Hiroto , Nishiuchi Yasuhiro , Takahashi Kouichi , Fujita Reiko , Uwai Koji , Takeshita Mitsuhiro
Published: February 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: Michael Addition Reaction of Alkenyl Trichloroacetates Catalyzed by Dibutyltin Dimethoxide.
Authors: Yanagisawa Akira , Izumi Youhei , Arai Takayoshi
Published: February 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 Synthesis of (2‐Benzimidazolyl)‐1‐azaazulenes, (2‐Benzothiazolyl)‐1‐azaazulenes, and Related Compounds and Evaluation of Their Anticancer in vitro Activity.
Authors: Yamauchi Noriko , Fujii Hiroyuki , Kakehi Akikazu , Shiro Motoo , Kurosawa Masaki , Konakahara Takeo , Abe Noritaka
Published: February 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: Dialkylzinc‐Accelerated α‐Trifluoromethylation of Carbonyl Compounds Catalyzed by Late‐Transition‐Metal Complexes.
Authors: Tomita Yuichi , Itoh Yoshimitsu , Mikami Koichi
Published: February 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 Simple One‐Pot Preparation of Diazoacetoacetate Derivatives from Aldehydes.
Authors: Erhunmwunse Marvis O. , Steel Patrick G.
Published: February 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: Mild and Efficient Re(VII)‐Catalyzed Synthesis of 1,1‐Dihydroperoxides.
Authors: Ghorai Prasanta , Dussault Patrick H.
Published: February 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: Palladium‐Catalyzed Cyclopropanation of Electron‐Deficient Olefins with Aryldiazocarbonyl Compounds.
Authors: Chen Shufeng , Ma Jian , Wang Jianbo
Published: February 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: Palladium‐Catalyzed Benzylic Arylation of N‐Benzylxanthone Imine.
Authors: Niwa Takashi , Yorimitsu Hideki , Oshima Koichiro
Published: February 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 3‐Acetoxyacetanilide Derivatives by Means of Semmler—Wolff‐Type Aromatization Reaction of Cyclohexane‐1,3‐dione Monooximes.
Authors: Ishikawa Teruhiko , Arai Masaki , Nishiuchi Hironori , Ishiguro Hiroshi , Saito Seiki
Published: February 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 β‐Hydroxysulfides from Styrenes and Disulfides Using the Zn/AlCl3 System.
Authors: Movassagh Barahman , Navidi Mozhgan
Published: February 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: Heavier Group 2 Element‐Catalyzed Hydroamination of Isocyanates.
Authors: Barrett Anthony G. M. , Boorman Tanya C. , Crimmin Mark R. , Hill Michael S. , Kociok‐Koehn Gabriele , Procopiou Panayiotis A.
Published: February 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: N‐Benzyl Aspartate Nitrones: Unprecedented Single‐Step Synthesis and [3 + 2] Cycloaddition Reactions with Alkenes.
Authors: Nguyen Thanh Binh , Martel Arnaud , Dhal Robert , Dujardin Gilles
Published: February 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 Theoretical Characterization of Some New 4‐Substituted‐1,3‐diphenyl‐5‐thioxo‐4,5‐dihydro‐1H‐1,2,4‐triazoles with Potential Pharmacological Activity.
Authors: Siwek Agata , Wujec Monika , Dobosz Maria , Paneth Piotr
Published: February 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(I)‐Doped Wyoming′s Montmorillonite for the Synthesis of Disubstituted 1,2,3‐Triazoles.
Authors: Jlalia Ibtissem , Elamari Hichem , Meganem Faouzi , Herscovici Jean , Girard Christian
Published: February 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: Role of Copper in Catalyzing Aryl and Heteroaryl‐Nitrogen (or ‐Oxygen) Bond Formation under Ligand‐Free and Solvent‐Free Conditions.
Authors: Basu Basudeb , Das Sajal , Mandal Bablee
Published: February 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 Facile, Scalable Preparation of 4‐Oxo‐4,7‐dihydrothieno[2,3‐b]pyridine‐5‐carbonitriles.
Authors: Tumey L. Nathan , Bhagirath Niala , Wu Biqi , Boschelli Diane H.
Published: February 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 Stereoselective Organocatalytic Tandem Aminoxylation/Aza‐Michael Reaction for the Synthesis of Tetrahydro‐1,2‐oxazines.
Authors: Zhu Di , Lu Min , Chua Pei Juan , Tan Bin , Wang Fei , Yang Xinhao , Zhong Guofu
Published: February 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: The First Synthesis of a Novel 5:7:5‐Fused Diimidazodiazepine Ring System and Some of Its Chemical Properties.
Authors: Kumar Raj , Ujjinamatada Ravi K. , Hosmane Ramachandra S.
Published: February 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 Macrocycles Comprising 2,7‐Disubstituted Naphthalene and Polyamine Moities via Pd‐Catalyzed Amination.
Authors: Averin Alexei D. , Uglov Alexei N. , Beletskaya Irina P.
Published: February 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 New Synthesis of Symmetric Boraindacene (BODIPY) Dyes.
Authors: Wu Liangxing , Burgess Kevin
Published: February 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 Palladium‐Catalyzed Cross‐Coupling of Aryl and Vinyl Halides with H‐Phosphonate Diesters.
Authors: Kalek Marcin , Ziadi Asraa , Stawinski Jacek
Published: February 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: N‐Glycine‐sulfonamides as Potent Dual Orexin 1/Orexin 2 Receptor Antagonists.
Authors: Aissaoui Hamed , Koberstein Ralf , Zumbrunn Cornelia , Gatfield John , Brisbare‐Roch Catherine , Jenck Francois , Treiber Alexander , Boss Christoph
Published: February 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: Citrinamides, New Potentiators of Antifungal Miconazole Activity, Produced by Penicillium sp. FKI‐1938.
Authors: Fukuda Takashi , Hasegawa Yoko , Sakabe Yasunari , Tomoda Hiroshi , Omura Satoshi
Published: February 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‐94964, a Novel Inhibitor of Bacterial Translocase I, Produced by Streptomyces sp. SANK 60404. Part 1. Taxonomy, Isolation and Biological Activity.
Authors: Murakami Ryo , Fujita Yoko , Kizuka Masaaki , Kagawa Tomoka , Muramatsu Yasunori , Miyakoshi Shunichi , Takatsu Toshio , Inukai Masatoshi
Published: February 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: An Efficient Synthetic Route for a Versatile Ciliapterin Derivative and the First Ciliapterin D‐Mannoside Synthesis.
Authors: Hanaya Tadashi , Baba Hiroki , Kanemoto Mitsunori , Yamamoto Hiroshi
Published: February 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: Staphylosides A and B: Two New Chromone Diglucosides from Leaves of Staphylea bumalda DC.
Authors: Sueyoshi Etsuko , Yu Qian , Matsunami Katsuyoshi , Otsuka Hideaki
Published: February 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: Isolation, Structure and Fatty Acid Synthesis Inhibitory Activities of Platensimycin B1—B3 from Streptomyces platensis.
Authors: Zhang Chaowei , Ondeyka John , Zink Deborah L. , Burgess Bruce , Wang Jun , Singh Sheo B.
Published: February 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 New Antioxidant, Clitocybin A, from the Culture Broth of Clitocybe aurantiaca.
Authors: Yoo Ick‐Dong , et al. et al.
Published: February 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: Preparation and Characterization of Spherical and Balloon‐Like Calcium Phosphate Particles.
Authors: Kandori Kazuhiko , Tada Kiri , Fukusumi Masao , Morisada Yoshiaki
Published: February 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: Half‐Metallic Ferromagnets: From Band Structure to Many‐Body Effects
Authors: Katsnelson M. I. , Irkhin V. Yu. , Chioncel L. , Lichtenstein A. I. , de Groot R. A.
Published: February 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: Metal and Mixed‐Metal Coordination Polymers Synthesized with Pyrazine‐2‐carboxylate
Authors: Ellsworth Joseph M. , zur Loye Hans‐Conrad
Published: February 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: Organocatalytic Reactions: Effects of Ball Milling, Microwave and Ultrasound Irradiation
Authors: Bruckmann Angelika , Krebs Anke , Bolm Carsten
Published: February 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: Transition Metals in Organosilicon Chemistry
Authors: Tilley T. Don
Published: February 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: Vinyloligosilyl Anions: A New Class of Compounds
Authors: Markov Jelena , Baumgartner Judith , Marschner Christoph , Oehme Hartmut , Gross Thoralf
Published: February 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: Substituted [2.2] Paracyclophane Derivatives as Efficient Ligands for Asymmetric 1,2‐ and 1,4‐Addition Reactions
Authors: Braese Stefan
Published: February 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 by Substitution of Metals
Authors: Haertinger S. , Haertinger M.
Published: February 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 by Substitution of Hydrogen
Authors: Pfeiffer W. D.
Published: February 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: Advances and Prospects of Gold Nanorods.
Authors: Yang Da‐Peng , Cui Da‐Xiang
Published: February 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: Improving Chemical Synthesis Using Flow Reactors
Authors: Wiles Charlotte , Watts Paul
Published: February 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: Cake Emulsions
Authors: Sahi Sarabjit S.
Published: February 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: Theoretical Aspects of Spin—Spin Couplings
Authors: Fukui Hiroyuki
Published: February 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: Oriented Molecules
Authors: Ramanathan K. V. , Prabhu Uday R. , Khetrapal C. L.
Published: February 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: Solid‐State NMR Spectroscopy
Authors: Aliev A. E. , Law R. V.
Published: February 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.
Design and implementation of a high‐performance CCA event service
Authors: Gorton Ian , Chavarria Daniel , Nieplocha Jarek
Published: February 2009

Event services based on publish–subscribe architectures are well‐established components of distributed computing applications. Recently, an event service has been proposed as part of the common component architecture (CCA) for high‐performance computing (HPC) applications. In this paper we describe our implementation, experimental evaluation, and initial experience with a high‐performance CCA event service that exploits efficient communications mechanisms commonly used on HPC platforms. We describe the CCA event service model and briefly discuss the possible implementation strategies of the model. We then present the design and implementation of the event service using the aggregate remote memory copy interface as an underlying communication layer for this mechanism. Two alternative implementations are presented and evaluated on a Cray XD‐1 platform. The performance results demonstrate that event delivery latencies are low and that the event service is able to achieve high‐throughput levels. Finally, we describe the use of the event service in an application for high‐speed processing of data from a mass spectrometer and conclude by discussing some possible extensions to the event service for other HPC applications. Published in 2009 by John Wiley & Sons, Ltd.
Accurate garbage collection in uncooperative environments revisited
Authors: Baker J. , Cunei A. , Kalibera T. , Pizlo F. , Vitek J.
Published: February 2009

Implementing a concurrent programming language such as Java by means of a translator to an existing language is attractive as it provides portability over all platforms supported by the host language and reduces development time—as many low‐level tasks can be delegated to the host compiler. The C and C++ programming languages are popular choices for many language implementations due to the availability of efficient compilers on a wide range of platforms. For garbage‐collected languages, however, they are not a perfect match as no support is provided for accurately discovering pointers to heap‐allocated data on thread stacks. We evaluate several previously published techniques and propose a new mechanism, lazy pointer stacks, for performing accurate garbage collection in such uncooperative environments. We implemented the new technique in the Ovm Java virtual machine with our own Java‐to‐C/C++ compiler using GCC as a back‐end compiler. Our extensive experimental results confirm that lazy pointer stacks outperform existing approaches: we provide a speedup of 4.5% over Henderson's accurate collector with a 17% increase in code size. Accurate collection is essential in the context of real‐time systems, we thus validate our approach with the implementation of a real‐time concurrent garbage collection algorithm. Copyright © 2009 John Wiley & Sons, Ltd.
Network‐aware selective job checkpoint and migration to enhance co‐allocation in multi‐cluster systems
Authors: Jones William M.
Published: February 2009

Multi‐site parallel job schedulers can improve average job turn‐around time by making use of fragmented node resources available throughout the grid. By mapping jobs across potentially many clusters, jobs that would otherwise wait in the queue for local resources can begin execution much earlier; thereby improving system utilization and reducing average queue waiting time. Recent research in this area of scheduling leverages user‐provided estimates of job communication characteristics to more effectively partition the job across system resources. In this paper, we address the impact of inaccuracies in these estimates on system performance and show that multi‐site scheduling techniques benefit from these estimates, even in the presence of considerable inaccuracy. While these results are encouraging, there are instances where these errors result in poor job scheduling decisions that cause network over‐subscription. This situation can lead to significantly degraded application performance and turnaround time. Consequently, we explore the use of job checkpointing, termination, migration, and restart (CTMR) to selectively stop offending jobs to alleviate network congestion and subsequently restart them when (and where) sufficient network resources are available. We then characterize the conditions and the extent to which the process of CTMR improves overall performance. We demonstrate that this technique is beneficial even when the overhead of doing so is costly. Copyright © 2009 John Wiley & Sons, Ltd.
Distributed parallel compilation of MSBNs
Authors: An Xiangdong , Cercone Nick
Published: February 2009

Multiply sectioned Bayesian networks (MSBNs) support multiagent probabilistic inference in distributed large problem domains. Inference with MSBNs can be performed using their compiled representations. The compilation involves moralization and triangulation of a set of local graphical structures. Privacy of agents may prevent us from compiling MSBNs at a central location. In earlier work, agents performed compilation sequentially via a depth‐first traversal of the hypertree that organizes local subnets, where communication failure between any two agents would crush the whole work. In this paper, we present an asynchronous compilation method by which multiple agents compile MSBNs in full parallel. Compared with the traversal compilation, the asynchronous one is robust, self‐adaptive, and fault‐tolerant. Experiments show that both methods provide similar quality compilation to simple MSBNs, but the asynchronous one provides much higher quality compilation to complex MSBNs. Empirical study also indicates that the asynchronous one is consistently faster than the traversal one. Copyright © 2009 John Wiley & Sons, Ltd.
Magnifying Superlenses and other Applications of Plasmonic Metamaterials in Microscopy and Sensing
Authors: Smolyaninov Igor I. , Davis Christopher C.
Published: February 2009

Every last detail: New advances in the construction of metamaterials enable the creation of artificial optical media, whose use in microscopy can provide resolution that is not determined by the conventional diffraction limit. The picture shows a superposition of an AFM image of a plasmonic metamaterial onto the corresponding optical image obtained using a conventional optical microscope.

magnified image

Over the past century, the resolution of conventional optical microscopes, which rely on optical waves that propagate into the far field, has been limited because of diffraction to a value of the order of a half‐wavelength (λ0/2) of the light used. Although immersion microscopes have slightly improved resolution, of the order of λ0/2n, the increased resolution is limited by the small range of refractive indices n of available transparent materials. However, now we are experiencing a quick demolition of the diffraction limit in optical microscopy. In the last few years, numerous nonlinear optical microscopy techniques based on photoswitching and saturation of fluorescence have demonstrated far‐field resolution of 20 to 30 nm. In a parallel development, recent progress in metamaterials has demonstrated that artificial optical media can be created, whose use in microscopy can provide resolution that is not determined by the conventional diffraction limit. The resolution of linear immersion microscopes based on such metamaterials is only limited by losses, which can be minimized by appropriate selection of the constituents of the metamaterials used and by the wavelength(s) used for imaging. It is also feasible to compensate for losses by adding gain to the structure. Thus, optical microscopy is quickly moving towards resolution of around 10 nm, which should bring about numerous revolutionary advances in lithography and imaging.
Antimony‐Doped Tin Oxide Nanocrystals: Synthesis and Solubility Behavior in Organic Solvents
Authors: da Silva Rafael O. , Conti Tiago G. , de Moura André F. , Stroppa Daniel G. , Freitas Luiz C. G. , Ribeiro Caue , Camargo Emerson R. , Longo Elson , Leite Edson R.
Published: February 2009

The right mix: SnO2:Sb nanocrystals (NCs) can be solubilized into organic solvents with a suitable solvent/surfactant combination to achieve a stable colloid (see picture). A single synthesis route and different solvent/amphiphilic molecule pairs are used to obtain soluble NC colloids, instead of requiring several syntheses to obtain soluble NCs in different solvents.

magnified image

This work focuses on the nonaqueous synthesis of antimony‐doped tin oxide nanocrystals in the size range of 2–6 nm and the investigation of their solubility in organic solvents (CHCl3 and THF) in the presence of amphiphilic molecules (oleic acid and oleylamine). To unravel the underlying processes, a set of molecular dynamics simulations is performed involving the compatibility of oleic acid and oleylamine in mixtures with both CHCl3 and THF. The results show that the method is useful for obtaining the desired oxide, and that the interaction between amphiphilic molecules and solvents can be predicted by molecular dynamics simulations with very good qualitative agreement.
Evaluation of new monoclonal antibodies in detection of estrogen receptor, progesterone receptor, and Her2 protein expression in breast carcinoma cell block sections using conventional microscopy and quantitative image analysis
Authors: Hanley K. Z. , Siddiqui M. T. , Lawson D. , Cohen C. , Nassar A.
Published: February 2009

Accurate assessment of estrogen receptor (ER), progesterone receptor (PR), and Her2 status of breast carcinomas is critical for predicting response to systemic therapies. Recently, developed rabbit monoclonal antibodies (RMab) are reported to have higher sensitivity than murine monoclonal antibodies (Mab). This study compares RMabs against FDA‐approved Mab (FMab) in breast carcinoma cell block sections using visual and image quantification. Cell blocks from 52 breast cancers were studied. Immunohistochemistry using RMab (ER, PR, and Her2) was compared with FMabs (ER, PR, Dako) and HercepTest (HerFDA). Fluorescent in situ hybridization (FISH) was used as a reference standard for Her2. Slides were later scanned and reanalyzed with an automated cellular imaging system (ACIS III, Dako). Frequency of ER (38.5% vs. 36.5% for visual; 55.8% vs. 57.7% for image) and PR (28.8% vs. 36.5% for visual; 50% vs. 51.9% for image), and concordance (overall agreement is 71.2% and 75% for visual and image ER; and 84.6% and 59.6% for visual and image PR) were similar for both FMab and RMab, respectively. Overall agreement (53.8% vs. 77.1% for visual and image detection, respectively, using HerFDA and RMab) is poor to moderate for Her2. Visual Her2 (RMab) has the highest concordance (94.1%), and visual HerFDA has the lowest concordance (35.3%) with FISH. ER and PR analysis (FMab vs. RMab) are almost comparable using both detection methods with good overall agreement. For Her2 overexpression, RMab proved to be superior to HerFDA and showed excellent agreement with FISH results with both quantitative detection methods. Diagn. Cytopathol. 2009. © 2009 Wiley‐Liss, Inc.
Comparison of accuracy of diagnostic modalities for evaluation of breast cancer with review of literature
Authors: Bukhari Mulazim Hussain , Akhtar Zahid Mahmood
Published: February 2009

This study was conducted to confirm which of these modalities [mammography (MG), fine‐needle aspiration cytology (FNAC), core‐needle biopsy (CNB), or intraoperative touch imprint cytology (IOTIC)] is useful to detect breast cancer and to compare the accuracy of these modalities for the diagnostic setting. One hundred seventy‐five, 85, 78, and 25 patients were selected who underwent FNAC, MG, IOTIC, and CNB, respectively. Histopathology was used as a gold standard for comparison of the results of all diagnostic modalities. Twenty‐five patients with combinations of three preoperative tests (MG, FNAC, CNB) showed 100% accurate results when compared with histopathology, while the overall accuracy for MG, FNAC, and CNB was 91.7%, 91.5%, and 96%, respectively. Both touch and scrape imprints' sensitivity, specificity, positive predictive value, negative predictive value (NPV), and accuracy were 100% for class V and class II smears, while sensitivity, accuracy, and NPV were 87, 95, and 83% for IOTIC and 94%, 96%, and 89% for IOSC for class III and IV smears. On comparison of the results of all these procedures, the difference was nonspecific (P = 0.2, 0.3, 0.5, 0.55, and 0.6 for MG, FNAC, IOTI, IOSC, and CNB, respectively). Combinations of preoperative tests (MG, FNAC, CNB) were more accurate, reliable, and acceptable when compared with individual diagnostic procedure, but these have their own technical limitations. The accuracy of CNB was much higher than that of MG and FNAC. IOTP and IOSC are simple and cost effective diagnostic tests with better accuracy that can be used as an alternate to frozen section in diagnostic settings and margin assessments. Diagn. Cytopathol. 2009. © 2009 Wiley‐Liss, Inc.
Ascitic fluid cytology of a malignant mixed müllerian tumor of the peritoneum: A report of two cases with special reference to p53 status
Authors: Kato Noriko , Motoyama Teiichi
Published: February 2009

Malignant mixed müllerian tumors (MMMTs) rarely originate in the female peritoneum. Peritoneal MMMT, as well as its uterine or ovarian counterpart, is characterized by biphasic histologic components, including carcinoma of the müllerian type and sarcoma. In ascitic fluid cytology of MMMT, however, the biphasic pattern is less evident than in tissue sections, and heterogeneity of cell differentiation makes the cytologic diagnosis difficult, especially in distinguishing tumor cells from reactive mesothelial cells. Here, we report ascitic fluid cytology for two peritoneal MMMT cases. Immunocytochemistry for p53 was helpful in identifying malignant cells; tumor cells in ascitic fluid smears, as well as carcinomatous cells and sarcomatous cells in tissue sections, showed distinct nuclear immunostaining for p53, whereas mesothelial cells did not. Subsequent molecular genetic analysis confirmed frameshift mutations in both cases. To the best of our knowledge, this is the first report showing p53 overexpression and its genetic background in MMMT of the peritoneum. Diagn. Cytopathol. 2009. © 2009 Wiley‐Liss, Inc.