bluuebunny/crossref_metadata_2025_split huggingface dataset:
Inquiry project‐based learning with a partnership of three types of teachers and the school librarian
Authors: Chu Kai Wah Samuel 
Published: May 2009

AbstractUsing an inquiry project‐based learning (PBL) approach that involved the collaboration of three kinds of teachers (general studies, language, and information technology [IT]) and the librarian, primary 4 students from a Hong Kong school were guided through group projects. The effect of this approach was examined by comparing the project grades of students who took part in the inquiry PBL project with those of a control group. Surveys and interviews were conducted with students (N1= 141), parents (N2= 27), and teachers (N3= 11). The comparison of group project grades revealed significantly higher scores for the inquiry PBL groups (p< 0.05). Surveys showed that students were perceived to have improved in eight dimensions of learning, with no significant differences (p> 0.05) between students, parents, and teachers. Students enjoyed the projects and perceived them to be relatively easy. Gender differences and academic abilities had no significant moderating effects on the learning dimensions. Examination of the approach showed the collaboration between the four teaching staff to be effective through the support of the school administration, an inquiry learning expert, and parents. On the other hand, the main limitation was the extra workload for the teachers. Nevertheless, the study participants and stakeholders all advocate the continued implementation of the approach.
Berechnung der Knicklast in Bogenebene von Netzwerkbögen
Authors: Schanack Frank 
Published: May 2009

AbstractNetzwerkbögen sind Stabbogenbrücken mit geneigten Hängern, die sich mehrmals kreuzen. In den letzten fünf Jahren wurde eine bedeutende Anzahl von neuen Netzwerkbogenbrücken gebaut und vielleicht eine Abwendung von den traditionellen Stabbögen mit vertikalen Hängern eingeleitet. Wenn neue Tragwerke in die Bautechnik eingeführt werden, ist es wichtig, ihr Tragverhalten zu verstehen, um das gewohnte Sicherheits‐ und Qualitätsniveau zu wahren. In Bögen ist in diesem Zusammenhang das Stabilitätsverhalten von besonderem Interesse. Die einzige existierende Lösung kann das Knicken von Netzwerkbögen in ihrer Ebene nicht in befriedigendem Maße erklären, da ihr Anwendungsbereich auf einen Sonderfall begrenzt ist. Eine allgemeine Parameterstudie des Knickens in Bogenebene führt zu einem Konzept, nach dem das Problem als ein gekrümmter Druckstab mit radialer elastischer Bettung aufgefasst werden kann. Es wird daraufhin eine einfache analytische Formel hergeleitet, die die kritische elastische Knicklast und die kritische Eigenform mit einem Fehler von weniger als 5% voraussagt.Calculation of the critical in‐plane buckling load of network arches.Network arches are tied arch bridges with inclined hangers, which have multiple intersections. In the last five years there has been built a significant number of network arch bridges, maybe initiating a turning away from the traditional tied arches with vertical hangers. When introducing new structures it is important to understand well its structural behaviour in order to assure the usual safety and quality level. In arches, the buckling behaviour is of particular interest. The existent solution does not explain the in‐plane buckling of network arches to a satisfying extent, limiting its application range to a special case. A general parametric study of the in‐plane buckling leads to a concept, which allows considering the problem as a curved compression strut with radial elastic support. Then, a simple analytical formula is derived that predicts the critical buckling load and buckling mode for in‐plane buckling of network arch bridges with an error of less than 5%.
Hazard in ductal stenting: Helicoid open cell stents
Authors: Kitzmüller Erwin , Luckner Doris , Michel‐Behnke Ina 
Published: May 2009

AbstractStent implantation in the arterial duct has achieved great acceptance as an alternative to an aortopulmonary shunt procedure. Despite challenging, also tortuous arterial ducts as in ToF and pulmonary atresia with VSD can be addressed, since flexible open cell coronary stents are available. We describe two patients with ToF and Ebstein's anomaly where a special helicoid open cell stent was implanted to cross a highly stenotic sigmoid arterial duct. In both patients, the stent design resulted in extremely kinked stent segments with minor or absent flow through the stent lumen. While in one patient early ToF‐repair was required, in the other recrossing and restenting with another open cell but not helicoid tubular design type of stent allowed adequate pulmonary perfusion. Although mimicking of the natural course even in tortuous ducts is not mandatory, kinking of the stent is likely to occur in these types of arterial ducts. On the basis of our experience, we can not recommend helicoid manufactured stents in the scenario of ductal stenting, especially in congenital heart disease with completely duct dependent pulmonary circulation. © 2009 Wiley‐Liss, Inc.
Cover Picture: Controlling the Chair Conformation of a Mannopyranose in a Large‐Amplitude [2]Rotaxane Molecular Machine (Chem. Eur. J. 21/2009)
Authors: Coutrot Frédéric , Busseron Eric 
Published: May 2009

AbstractA domino effect from one extremity to the other is observed in a large‐amplitude mannosyl [2]rotaxane molecular machine. In their Communication on page 5186 ff., F. Coutrot and E. Busseron describe the efficient preparation of new [2]rotaxane molecular machines containing anilinium and either mono‐ or disubstituted pyridinium amide stations. In the case of the disubstituted pyridinium amide, the macrocycle shuttles from the anilinium to the pyridinium upon deprotonation and causes an impressive flipping of the chair conformation of the glucidic moiety.magnified image
ChemInform Abstract: β‐Ca3N2, a Metastable Nitride in the System Ca—N.
Authors: Hoehn Peter , Hoffmann Stefan , Hunger Jens , Leoni Stefano , Nitsche Fabian , Schnelle Walter , Kniep Ruediger 
Published: May 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Effect of Cu Addition in Reduction of MgO Content for the Synthesis of MgB2 Through Sintering.
Authors: Ma Zongqing , Liu Yongchang , Shi Qingzhi , Zhao Qian , Gao Zhiming 
Published: May 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Rapid Synthesis of Perovskite‐Type LaFeO3 Nanoparticles by Microwave‐Assisted Decomposition of Bimetallic La[Fe(CN)6]·5H2O Compound.
Authors: Farhadi Saeid , Momeni Zohreh , Taherimehr Masoumeh 
Published: May 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Reaction of β,β‐Bis(trifluoroacetyl)vinyl Ethers and β‐Trifluoroacetylvinyl Ethers with 1,2‐Phenylenediamines Accessing Fluorine‐Containing Benzo[b][1,4]diazepine Derivatives — A Study about the Reaction Based on Molecular Orbital Calculations.
Authors: Ota Norio , Kamitori Yasuhiro , Tomoda Takehisa , Terai Naoya , Okada Etsuji 
Published: May 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Enantioselective Route to Aryl(1,3‐butadien‐2‐yl)methanols: Formal Synthesis of (‐)‐Sporochnol A.
Authors: Yanagimoto Daisuke , Kawano Kazuyuki , Takahashi Keisuke , Ishihara Jun , Hatakeyama Susumi 
Published: May 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Catalytic Asymmetric Intramolecular Allylation of Aldehyde.
Authors: Sato Tomohiro , Tomioka Kiyoshi 
Published: May 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: First Example of the Synthesis of Pyrrolo[1,2‐d][1,4]diazocine by the Reaction of Tetrahydropyrrolo[1,2‐a]pyrazines with Activated Alkynes.
Authors: Voskresensky L. G. , Borisova T. N. , Kamalitdinova T. M. , Terenin V. I. , Titov A. A. , Varlamov A. V. 
Published: May 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Reaction of 1‐Azabicyclo[1.1.0]butanes with 2,3‐Dicyanofumarates: Interception of the Intermediate Zwitterions with Methanol.
Authors: Mloston Grzegorz , Celeda Malgorzata , Linden Anthony , Heimgartner Heinz 
Published: May 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: 2‐Quinoxalinol Salen Copper Complexes for Oxidation of Aryl Methylenes.
Authors: Wu Xianghong , Gorden Anne E. 
Published: May 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Molybdenum(VI) Dichloride Dioxide Catalyzed Conversion of β‐Hydroxycarbonyls into α‐Bromo 1,3‐Dicarbonyls by N‐Bromosuccinimide.
Authors: Jeyakumar Kandasamy , Chand Dillip Kumar 
Published: May 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Synthesis, Structure, and Application of Self‐Assembled Copper(II) Aqua Complex by H‐Bonding for Acceleration of the Nitroaldol Reaction on Water.
Authors: Jammi Suribabu , Ali Md. Ashif , Sakthivel Sekarpandi , Rout Laxmidhar , Punniyamurthy Tharmalingam 
Published: May 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: A Synthesis of Di‐ and Tri‐Substituted β,γ‐Unsaturated Esters from Aldehydes by the Magnesium Carbenoid 1,2‐CH and 1,2‐CC Insertion as the Key Reaction.
Authors: Yamashita Hironori , Satoh Tsuyoshi 
Published: May 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Triphenylphosphine Dibromide: A Simple One‐Pot Esterification Reagent.
Authors: Salome Christophe , Kohn Harold 
Published: May 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Highly Efficient Iron(II) Chloride/N‐Bromosuccinimide‐Mediated Synthesis of Imides and Acylsulfonamides.
Authors: Wang Feng , Liu Hongxia , Fu Hua , Jiang Yuyang , Zhao Yufen 
Published: May 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Microwave‐Assisted N‐Boc Deprotection under Mild Basic Conditions Using K3PO4·H2O in MeOH.
Authors: Dandepally Srinivasa Reddy , Williams Alfred L. 
Published: May 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Thieme Chemistry Journal Awardees — Where Are They Now? Synthesis of Diamantane‐Derived N‐Heterocyclic Carbenes and Applications in Catalysis.
Authors: Richter Heinrich , Schertfeger Hartmut , Schreiner Peter R. , Froehlich Roland , Glorius Frank 
Published: May 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Regio‐ and Diastereoselective Addition of Allylic Thioethers to Aldehydes.
Authors: Gamba‐Sanchez Diego , Oriez Raphael , Prunet Joelle 
Published: May 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Nonracemizable Isocyanoacetates for Multicomponent Reactions.
Authors: Zhdanko Alexander G. , Nenajdenko Valentine G. 
Published: May 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Catalytic Asymmetric Conjugate Addition of Simple Alkyl Thiols to α,β‐Unsaturated N‐Acylated Oxazolidin‐2‐ones with Bifunctional Catalysts.
Authors: Liu Yan , Sun Bingfeng , Wang Baomin , Wakern Matthew , Deng Li 
Published: May 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Highly Enantio‐ and Diastereoselective One‐Pot Methods for the Synthesis of Halocyclopropyl Alcohols.
Authors: Kim Hun Young , Salvi Luca , Carroll Patrick J. , Walsh Patrick J. 
Published: May 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Highly Stereoselective Synthesis of (2R,3R)‐2‐Amino‐3‐cyclohexyl‐3‐hydroxypropionic Acid Using Asymmetric Hydrogenation.
Authors: Makino Kazuishi , Goto Takayuki , Ohtaka Junpei , Hamada Yasumasa 
Published: May 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Cyclohepta[de]naphthalenes and the Rearranged Abietane Framework of Microstegiol via Nicholas Reaction Chemistry.
Authors: Taj Rafiq A. , Abhayawardhana Anusha , Green James R. 
Published: May 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Novel Bifunctional Sulfonamides Catalyze an Enantioselective Conjugate Addition.
Authors: McGarraugh Patrick G. , Brenner Stacey E. 
Published: May 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Efficient Organocatalyzed Solvent‐Free Selective Synthesis of Conjugated Enones.
Authors: Goswami Papori , Das Babulal 
Published: May 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Cleavage of tert‐Butyl Benzoates with NaH in DMF: Comments on the Mechanism and a Simple and Safe Alternative Procedure.
Authors: Filali Emane , Lloyd‐Jones Guy C. , Sale David A. 
Published: May 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Rhodium‐Catalyzed Direct Oxidative Carbonylation of Aromatic C—H Bond with CO and Alcohols.
Authors: Guan Zheng‐Hui , Ren Zhi‐Hui , Spinella Stephen M. , Yu Shichao , Liang Yong‐Min , Zhang Xumu 
Published: May 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Temperature‐Dependent Nuclearity in Bis(benzimidazoyl) Nickel Complexes and Their Catalysis Toward Conjugate Addition of Thiophenols to α,β‐Enones.
Authors: Lee Way‐Zen , Wang Tzu‐Li , Tsang Huan‐Sheng , Liu Cheng‐Yuan , Chen Chien‐Tien , Kuo Ting‐Shen 
Published: May 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Regioselective Synthesis of 2‐(Aryloxythio)benzoates by the First [3 + 3] Cyclizations of 3‐Aryloxythio‐1‐silyloxybuta‐1,3‐dienes with 3‐Alkoxy‐2‐en‐1‐ones.
Authors: Iqbal Inam , Imran Muhammad , Villinger Alexander , Langer Peter 
Published: May 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: An Efficient Synthesis of Aryldithiocarbamic Acid Esters from Michael Addition of Electron‐Deficient Alkenes with Arylamines and CS2 in Solid Media Alkaline Al2O3.
Authors: Xia Shuai , Wang Xin , Ge Ze‐mei , Cheng Tie‐ming , Li Run‐tao 
Published: May 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Regioselective Synthesis of Functionalized Biaryls Based on the First [3 + 3] Cyclocondensations of 4‐Aryl‐1,3‐bis(trimethylsilyloxy)buta‐1,3‐dienes.
Authors: Adeel Muhammad , Rashid Muhammad A. , Rasool Nasir , Ahmad Rasheed , Villinger Alexander , Reinke Helmut , Fischer Christine , Langer Peter 
Published: May 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Modified Palladium‐Catalyzed Regioselective ortho‐Arylation of sp2 C—H Bond Substrates with a Low Catalyst Loading.
Authors: Yang Fan , Wu Yangjie , Li Yanan , Wang Biao , Zhang Junli 
Published: May 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Development of a New Chiral Spiro Oxazolinylpyridine Ligand (Spymox) for Asymmetric Catalysis.
Authors: Shibatomi Kazutaka , Muto Tsubasa , Sumikawa Yusuke , Narayama Akira , Iwasa Seiji 
Published: May 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Enamines: Efficient Nucleophiles for the Palladium‐Catalyzed Asymmetric Allylic Alkylation.
Authors: Zhao Xiaohu , Liu Delong , Xie Fang , Zhang Wanbin 
Published: May 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.