bluuebunny/crossref_metadata_2025_split huggingface dataset:
Thoracic radicular vessels by simultaneous intra‐arterial and intravenous injection of araldite
Authors: Jellema K. , Bleys R.L.A.W. , Tijssen C.C. , Koudstaal P.J. , van Gijn J. 
Published: April 2007

AbstractSpinal dural arteriovenous fistulas (SDAVF) consist of a shunt between a radicular artery and a radicular vein, resulting in a progressive paraparesis. They are most prevalent in middle‐aged men (male to female ratio 5 to 1). It is unknown why the shunt develops. It is possible that there are anatomical differences between men and women, which may account for the sex difference in prevalence. We performed a study with simultaneous arterial and venous araldite injection in 5 male and 5 female human cadavers using different colors. The mean age of the human cadavers was 78 years (range 70–91). The human cadavers were not known to have suffered from spinal disease. We did not find significant differences in thoracic vasculature between men and women. Two different types of radicular arteries could be identified: The first was the arterial feeder of the root ganglion or the dura mater, which is also called the distal radicular artery. The second was the tributary of the anterior spinal artery, which is also called the medullary artery. We found three arteriovenous anastomoses between the radicular artery and the corresponding vein, and three between the radicular artery and venous plexus. We found a total of six thoracic arteriovenous shunts in four cadavers but their role in the pathogenesis of SDAVF remains uncertain. No vascular anatomic differences between men and women were found. Clin. Anat. 20:524–529, 2007. © 2007 Wiley‐Liss, Inc.
Central venous catheterization—An anatomical review of a clinical skill—Part 1: Subclavian vein via the infraclavicular approach
Authors: Boon J.M. , Van Schoor A.N. , Abrahams P.H. , Meiring J.H. , Welch T. , Shanahan D. 
Published: April 2007

AbstractThe safe and successful performance of a central venous catheterization (CVC) requires a specific knowledge of anatomy in addition to a working knowledge. Misunderstanding the anatomy may result in failure or complications. This review aims to aid understanding of the anatomical framework, pitfalls, and complications of CVC of the subclavian (SCV). CVC is common practice amongst surgeons, anesthesiologists, and emergency room physicians during the preparations for major surgical procedures such as open‐heart surgery, as well as, for intensive care monitoring and rapid restoration of blood volume. Associated with this technique are certain anatomical pitfalls and complications that can be successfully avoided if one possesses a thorough knowledge of the contraindications, regional anatomy, and rationale of the technique. Clin. Anat. 20:602–611, 2007. © 2007 Wiley‐Liss, Inc.
The corridor map method: a general framework for real‐time high‐quality path planning
Authors: Geraerts Roland , Overmars Mark H. 
Published: April 2007

AbstractIn many virtual environment applications, paths have to be planned for characters to traverse from a start to a goal position in the virtual world while avoiding obstacles. Contemporary applications require a path planner that is fast (to ensure real‐time interaction with the environment) and flexible (to avoid local hazards such as small and dynamic obstacles). In addition, paths need to be smooth and short to ensure natural looking motions.Current path planning techniques do not obey these criteria simultaneously. For example, A* approaches generate unnatural looking paths, potential field‐based methods are too slow, and sampling‐based path planning techniques are inflexible. We propose a new technique, the Corridor Map Method (CMM), which satisfies all the criteria. In an off‐line construction phase, the CMM creates a system of collision‐free corridors for the static obstacles in an environment. In the query phase, paths can be planned inside the corridors for different types of characters while avoiding dynamic obstacles. Experiments show that high‐quality paths for single characters or groups of characters can be obtained in real‐time. Copyright © 2007 John Wiley & Sons, Ltd.
Structure Induction of the T‐Cell Receptor ζ‐Chain upon Lipid Binding Investigated by NMR Spectroscopy
Authors: Duchardt Elke , Sigalov Alexander B. , Aivazian Dikran , Stern Lawrence J. , Schwalbe Harald 
Published: April 2007

AbstractThe conformation of the cytoplasmic part of the ζ‐chain of the T‐cell receptor (TCR) in its free form and bound to detergent micelles has been investigated by heteronuclear NMR spectroscopy. The ζ‐chain is considered to be a mediator between the extracellular antigen and the intracellular signal‐transduction cascade leading to T‐cell activation. Earlier studies suggested a T‐cell activation mechanism that involved a TCR‐state‐dependent lipid incorporation propensity of the ζ‐chain accompanied by a helical folding transition. In order to support this proposed mechanism, standard protein NMR assignment and secondary‐structure‐elucidation techniques have been applied to the free TCR ζ‐chain and to the ζ‐chain bound to the detergent LMPG, which forms a micelle, in order to obtain the structural characteristics of this folding transition in a residue‐resolved manner. We could assign the resonances of the free ζ‐chain at 278 K, and this formed the basis for chemical‐shift‐perturbation studies to identify lipid binding sites. Our NMR results show that the free TCR ζ‐chain is indeed intrinsically unstructured. Regions around the ITAM2 and ITAM3 sequences are involved in a highly dynamic binding of the free ζ‐chain to a detergent micelle formed by the acidic lipid LMPG.
New Light on an Old Story: Formation of Melam during Thermal Condensation of Melamine
Authors: Lotsch Bettina V. , Schnick Wolfgang 
Published: April 2007

AbstractWe report on the existence and formation of the carbon nitride precursor melam (H2N)2(C3N3)NH(C3N3)(NH2)2, thereby clarifying one of the last unresolved issues posed by the complex thermal condensation of melamine C3N3(NH2)3. Experimental proof is put forward that melam is a direct condensation product of melamine, but can be detected only in small amounts under special reaction conditions owing to its rapid transformation into melem. The coexistence of melamine and melem during thermal condensation yields two adduct phases with distinct compositions [C3N3(NH2)3]2[C6N7(NH2)3] and [C3N3(NH2)3][C6N7(NH2)3]2. They may be considered as co‐crystallizates of melamine and melem and can be isolated as intermediates between 590 and 650 K prior to the formation of single‐phase melem C6N7(NH2)3. Melam (C2/c, a=1811.0(4), b=1086.7(2), c=1398.4(3) pm, β=96.31(3)°, V=2735.3(9)×106 pm3, T=130 K) adopts a ditriazinylamine‐type structure with a twisted conformation about the bridging NH moiety and transforms into melem around 640 K. Two compounds deriving from melam have been synthesized by solution and solid‐state reactions. The salt melamium diperchlorate C6N11H11(ClO4)2⋅2 H2O (C2/c, a=1747.8(4), b=1148.2(2), c=993.6(2) pm, β=118.79(3)°, V=1747.4(6)×106 pm3, T=130 K) crystallizes as a dihydrate and exhibits a doubly protonated, planar melam core. In the neutral complex Zn[C6N11H9]Cl2 (P21/c, a=743.00(15), b=2233.2(5), c=762.5(2) pm, β=99.86(3)°, V=1246.5(4)×106 pm3, T=200 K), melam acts as a symmetrically bent bidentate ligand, which is coordinated to the Lewis acid Zn‐site through two ring nitrogen atoms.
Crystal Structures of and Displacive Transitions in OsN2, IrN2, RuN2 and RhN2.
Authors: Yu Rong , Zhan Qian , De Jonghe Lutgard C. 
Published: April 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Crystal Structure and Chemical Bonding of the High‐Temperature Phase of AgN3.
Authors: Schmidt Carsten L. , Dinnebier Robert , Wedig Ulrich , Jansen Martin 
Published: April 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Direct Demonstration of Enhanced Diffusion in Mesoporous ZSM‐5 Zeolite Obtained via Controlled Desilication.
Authors: Groen Johan C. , Zhu Weidong , Brouwer Sander , Huynink Steven J. , Kapteijn Freek , Moulijn Jacob A. , Perez‐Ramirez Javier 
Published: April 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Phase Diagram for the Na2O—Al2O3—H2O System at 130 °C.
Authors: Ma Shuhua , Zheng Shili , Zhang Yifei , Zhang Yi 
Published: April 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Na[H2TETA]0.5 [ZnPO4]2×0.5H2O or TJPU‐1: A New Zincophosphate Open‐Structure Co‐Templated by Sodium and Organoamine.
Authors: Zhao Yongnan , Jin Jun , Yang Xiaoqin , Yang Yang 
Published: April 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis and Characterization of a Novel Germanate Material Containing 16‐Ring Channels and Templated by a Simple Primary Amine.
Authors: Attfield Martin P. , Al‐Ebini Yousef , Pritchard Robin G. , Andrews Ellen M. , Charlesworth Richard J. , Hung Wan , Masheder Ben J. , Royal Drew S. 
Published: April 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Exploiting the Multifunctionality of Organocations in the Assembly of Hybrid Polyoxometalate Clusters and Networks.
Authors: Ritchie Chris , Burkholder Eric M. , Long De‐Liang , Adam David , Koegerler Paul , Cronin Leroy 
Published: April 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Function of an N‐Heterocyclic Carbene Ligand Based on Concept of Chiral Mimetic.
Authors: Arao Takafumi , Sato Kei , Kondo Kazuhiro , Aoyama Toyohiko 
Published: April 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Highly Asymmetric Michael Addition to α,β‐Unsaturated Ketones Catalyzed by 9‐Amino‐9‐deoxyepiquinine.
Authors: Xie Jian‐Wu , Chen Wei , Li Rui , Zeng Mi , Du Wei , Yue Lei , Chen Ying‐Chun , Wu Yong , Zhu Jin , Deng Jin‐Gen 
Published: April 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
2‐Iodoxybenzoic Acid Mediated Facile Conversion of 1,3‐Diols to 1,2‐Diketones by Oxidative Cleavage of the C—C Bond.
Authors: Yadav J. S. , Biswas Swapan Kumar , Srinivas R. 
Published: April 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Selective Hydrogenolysis of Benzyl‐Protected 1‐Hydroxy‐3‐hydroxyimino‐2‐pyrrolidinones.
Authors: Katkevichs M. , Korchagova E. , Ivanova T. , Slavinska V. , Lukevics E. 
Published: April 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
The Proline‐Catalyzed Asymmetric Amination of Branched Aldehydes.
Authors: Baumann Thomas , Vogt Henning , Braese Stefan 
Published: April 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Bismuth‐Catalyzed Direct Substitution of the Hydroxy Group in Alcohols with Sulfonamides, Carbamates, and Carboxamides.
Authors: Qin Hongbo , Yamagiwa Noriyuki , Matsunaga Shigeki , Shibasaki Masakatsu 
Published: April 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Regioselective N‐Arylation of Some Pyrimidine and Purine Nucleobases.
Authors: Khalafi‐Nezhad Ali , Zare Abdolkarim , Parhami Abolfath , Rad Mohammad Navid Soltani , Nejabat Gholam Reza 
Published: April 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Non‐Cryogenic CeCl3‐Promoted Double Additions of Methyllithium and n‐Butyllithium to Unsaturated Nitriles.
Authors: Limanto John , Dorner Benjamin , Devine Paul N. 
Published: April 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Catalytic Carbonyl (Z)‐Dienylation via Multicomponent Reductive Coupling of Acetylene to Aldehydes and α‐Ketoesters Mediated by Hydrogen: Carbonyl Insertion into Cationic Rhodacyclopentadienes.
Authors: Kong Jong Rock , Krische Michael J. 
Published: April 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
An Asymmetric Synthesis of (2S,3S)‐Safingol
Authors: Sharma Anubha , Gamre Sunita , Chattopadhyay Subrata 
Published: April 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Asymmetric Induction in Hydrogen‐Mediated Reductive Aldol Additions to α‐Amino Aldehydes Catalyzed by Rhodium: Selective Formation of syn‐Stereotriads Directed by Intramolecular Hydrogen‐Bonding.
Authors: Jung Cheol‐Kyu , Krische Michael J. 
Published: April 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
A New Strategy for the Synthesis of Taurine Derivatives Using the “Safety‐Catch” Principle for the Protection of Sulfonic Acids.
Authors: Seeberger Sonja , Griffin Roger J. , Hardcastle Ian R. , Golding Bernard T. 
Published: April 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Enantioselective Cyclopropanation Reaction Using a Conformationally Fixed Pyridinium Ylide Through a Cation—π Interaction.
Authors: Yamada Shinji , Yamamoto Jun , Ohta Emiko 
Published: April 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Nickel(0)‐Catalyzed Disilylative and Silastannylative Cyclizations of 1,3‐Diene and Tethered Aldehyde.
Authors: Saito Nozomi , Mori Miwako , Sato Yoshihiro 
Published: April 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Second Generation Catalytic Asymmetric Synthesis of Tamiflu: Allylic Substitution Route.
Authors: Mita Tsuyoshi , Fukuda Nobuhisa , Roca Francesc X. , Kanai Motomu , Shibasaki Masakatsu 
Published: April 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Nickel‐Catalyzed [4 + 3] Cycloaddition of Ethyl Cyclopropylideneacetate and 1,3‐Dienes.
Authors: Saito Shinichi , Takeuchi Kouhei 
Published: April 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
A New, One‐Step, Effective Protocol for the Iodination of Aromatic and Heterocyclic Compounds via Aprotic Diazotization of Amines.
Authors: Krasnokutskaya Elena A. , Semenischeva Nadya I. , Filimonov Victor D. , Knochel Paul 
Published: April 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Bismuth‐ and Hafnium‐Catalyzed Hydroamination of Vinyl Arenes with Sulfonamides, Carbamates, and Carboxamides.
Authors: Qin Hongbo , Yamagiwa Noriyuki , Matsunaga Shigeki , Shibasaki Masakatsu 
Published: April 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Stereodynamics and Asymmetric Hydrosilylation with Chiral Rhodium Complexes Containing a Monodentate N‐Heterocyclic Carbene.
Authors: Faller J. W. , Fontaine Philip P. 
Published: April 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis of Palladium and Platinum Complexes with Phosphine‐Functionalized Benzimidazolin‐2‐ylidene Ligands.
Authors: Hahn F. Ekkehardt , Jahnke Mareike C. , Pape Tania 
Published: April 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Alkyl, Unsaturated, (Hetero)aryl, and N‐Protected α‐Amino Ketones by Acylation of Organometallic Reagents.
Authors: Katritzky Alan R. , Le Khanh N. B. , Khelashvili Levan , Mohapatra Prabhu P. 
Published: April 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
A Three‐Component Tandem Reductive Aldol Reaction Catalyzed by N‐Heterocyclic Carbene—Copper Complexes.
Authors: Welle Alexandre , Diez‐Gonzalez Silvia , Tinant Bernard , Nolan Steven P. , Riant Olivier 
Published: April 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Borax as an Efficient Metal‐Free Catalyst for Hetero‐Michael Reactions in an Aqueous Medium.
Authors: Hussain Sahid , Bharadwaj Saitanya K. , Chaudhuri Mihir K. , Kalita Harjyoti 
Published: April 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
One‐Pot Synthetic Procedure for 2,2′‐Disubstituted Biaryls via the Suzuki Coupling Reaction of Aryl Triflates in a Biphasic Solvent System.
Authors: Miura Masanori , Koike Takanori , Ishihara Tsukasa , Hirayama Fukushi , Sakamoto Shuichi , Okada Minoru , Ohta Mitsuaki , Tsukamoto Shin‐ichi 
Published: April 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Instantaneous Carbon—Carbon Bond Formation Using a Microchannel Reactor with a Catalytic Membrane.
Authors: Uozumi Yasuhiro , Yamada Yoichi M. A. , Beppu Tomohiko , Fukuyama Naoshi , Ueno Masaharu , Kitamori Takehiko 
Published: April 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Base‐Catalyzed Condensation of β‐Bromovinylaldehydes with β‐Ketoesters Followed by Water‐Mediated Cyclization and Aromatization: One‐Pot Access to Substituted Benzene Derivatives.
Authors: Ray Devalina , Ray Jayanta K. 
Published: April 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Platinum(II)‐Catalyzed Cyclizations Forming Quaternary Carbon Centers, Using Enesulfonamides, Enecarbamates, or Enamides as Nucleophiles.
Authors: Harrison Tyler J. , Patrick Brian O. , Dake Gregory R. 
Published: April 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Cationic Palladium Complex Catalyzed Highly Enantioselective Intramolecular Addition of Arylboronic Acids to Ketones. A Convenient Synthesis of Optically Active Cycloalkanols.
Authors: Liu Guixia , Lu Xiyan 
Published: April 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Efficient Syntheses of Thiono and Dithio Analogues of Tetronic Acid.
Authors: Labruere Raphael , Desbene‐Finck Stephanie , Helissey Philippe , Giorgi‐Renault Sylviane 
Published: April 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Highly Enantioselective Michael Additions of Indole to Benzylidene Malonate Using Simple Bis(oxazoline) Ligands: Importance of Metal/Ligand Ratio.
Authors: Rasappan Ramesh , Hager Markus , Gissibl Anja , Reiser Oliver 
Published: April 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Assembly of 3‐Acyloxindoles via CuI/L‐Proline‐Catalyzed Intramolecular Arylation of β‐Keto Amides.
Authors: Lu Biao , Ma Dawei 
Published: April 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Convenient Synthesis of N,N′‐Bis‐protected‐3,3′‐diiodo‐2,2′‐biindoles.
Authors: Roy Sudipta , Gribble Gordon W. 
Published: April 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
A Modified and Convenient Method for the Preparation of N‐Phenylpyrazoline Derivatives.
Authors: Safaei‐Ghomi J. , Bamoniri A. H. , Soltanian‐Telkabadi M. 
Published: April 2007

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.