bluuebunny/crossref_metadata_2025_split huggingface dataset:
The role of integrated geophysical survey methods in the assessment of archaeological landscapes: the case of Portus
Authors: Keay Simon , Earl Graeme , Hay Sophie , Kay Stephen , Ogden Jessica , Strutt Kristian D. 
Published: July 2009

AbstractThe regular application of geophysical, geochemical and topographical survey techniques to evaluate archaeological sites is well established as a method for locating, defining and mapping buried archaeological materials. However, it is not always feasible to apply a range of different methods over a particular site or landscape due to constraints in time or funding. This paper addresses the integrated application of a variety of survey techniques over different sites and landscapes in Italy and elsewhere, focusing on the recent results from the ongoing survey and excavations at Portus, the port of Imperial Rome. An integration of methods, including magnetometry, resistance survey, ground‐penetrating radar (GPR) and electrical resistivity tomography (ERT) has been used at the site to fulfil a number of different research objectives. Results of the magnetometer survey have successfully recorded the nature and extent of archaeological material over an area of 220 ha, allowing a plan of the port and related structures to be produced and variations in archaeological potential across the entire landscape to be assessed. The integration of several techniques in one area of the site between the Porto di Claudio and the Porto di Traiano has mapped the structural remains of this area of the port prior to and during investigation of the zone through excavation. Current work on the geophysical survey data, using different software programs for the processing of survey data and merging different datasets using geographical information system packages, has allowed the results of the work to be visualized and presented to archaeologists in a comprehensive and unambiguous fashion, facilitating the future management and preservation of the site. In addition ongoing research is using different statistical and visual methods of integration to refine the archaeological interpretation of the study area. Copyright © 2009 John Wiley & Sons, Ltd.
Data evaluation in chromatography by principal component analysis
Authors: Cserháti T. 
Published: July 2009

AbstractThe newest achievements in the employment of principal component analysis, a multivariate mathematical statistical method, in the evaluation of chromatographic retention data are compiled. The results obtained by various chromatographic technologies such as gas–liquid chromatography, thin–layer chromatography, high‐performance liquid chromatography and electrically driven systems are compiled and briefly discussed. Copyright © 2009 John Wiley & Sons, Ltd.
Mechanical versus pharmacologic support for cardiogenic shock
Authors: Dhar Gaurav , Jolly Neeraj 
Published: July 2009

AbstractDynamic left ventricular outflow tract obstruction is a rare cause of cardiogenic shock after an acute myocardial infarction. A case is presented where inotropic support and an intra‐aortic balloon pump aggravated the cardiac hemodynamics by this mechanism. The circulatory support provided by Impella 2.5 heart pump, in addition to discontinuation of inotropic support and intra‐aortic balloon pump, allowed stabilization and successful percutaneous revascularization. © 2009 Wiley‐Liss, Inc.
Experimental Evaluation of a Micromesh Gas/Liquid Reactor for Catalytic Asymmetric Transfer Hydrogenation
Authors: Sun X.‐Y. , Gavriilidis A. 
Published: July 2009

AbstractAsymmetric transfer hydrogenation of acetophenone with isopropanol as a hydrogen donor in the presence of a homogeneous catalyst and simultaneous acetone removal by stripping has been performed in a microstructured mesh contactor that consists of parallel metal plates, gaskets and a microstructured mesh so that passages for gas and liquid phases are formed. The function of the micromesh is to stabilize the gas/liquid interface in its pores. The gas and liquid layers are 200 μm thick, while the stainless steel mesh is 50 μm thick, has 76 μm holes and 23 % open area. The removal of the acetone by‐product from the reaction system shortens the required reaction time to achieve high conversion and reduces the enantiomeric excess erosion, as compared to a batch reactor with nitrogen bubbling as well as a continuous reactor without acetone stripping at 30 °C. Lower acetophenone concentration leads to higher enantiomeric excess for both the batch and the mesh reactor, with the latter providing superior performance in all cases. The final enantioselectivity is in the range 80–86 % for the mesh reactor and 70–85 % for the batch reactor. In the mesh reactor, the reaction reaches completion within 15 min. In the batch reactor, it takes more than 3 h to complete the reaction. At 15 °C, the mesh reactor reduces the required time to achieve a certain conversion, but does not affect reaction enantioselectivity, as compared to the batch reactor.
A Bonding Quandary—or—A Demonstration of the Fact That Scientists Are Not Born With Logic
Authors: Alvarez Santiago , Hoffmann Roald , Mealli Carlo 
Published: July 2009

AbstractWe document here a spirited debate among three colleagues and friends who have strong opinions on a specific bonding problem, the presence or absence of a cross‐ring sulfur–sulfur bond in a trinuclear Cu3S2 cluster. The example may seem esoteric, but through their struggles with this specific bond (and with each other) the authors approach the more general problematic of chemistry, the chemical bond. The discussion focuses on bond lengths and the population of bonding and antibonding orbitals, and on oxidation states, electron counting, and associated geometries. It expands to encompass other bonding criteria, and introduces examples ranging far across organic and inorganic chemistry. The authors suggest molecules that might test their ideas. An Appendix to the paper discusses a matter rarely broached in the chemical literature—should one review for publication a paper which criticizes one of your own contributions.
Gold‐Catalyzed Intramolecular [3+2] Cycloadditions of 1‐Aryl‐1‐allene‐6‐enes
Authors: Chaudhuri Rupsha , Liao Hsin‐Yi , Liu Rai‐Shung 
Published: July 2009

AbstractTreatment of 1‐aryl‐1‐allen‐6‐enes with [PPh3AuCl]/AgSbF6 (5 mol %) in CH2Cl2 at 25 °C led to intramolecular [3+2] cycloadditions, giving cis‐fused dihydrobenzo[a]fluorene products efficiently and selectively. The reactions proceeded with initial formation of trans/cis mixtures of 2‐alkyl‐1‐isopropyl‐2‐phenyl‐1,2‐dihydronaphthalene cations B, which were convertible into the desired cis‐fused cycloadducts through the combined action of a gold catalyst and a Brønsted acid. Theoretic calculation supports the participation of the trans‐B cation as reaction intermediate. Although HOTf showed similar activity towards several 1‐aryl‐1‐allen‐6‐enes, it lacks generality for this cycloaddition reaction.
On the Importance of Ribose Orientation in the Substrate Activation of the Coenzyme B12‐Dependent Mutases
Authors: Durbeej Bo , Sandala Gregory M. , Bucher Denis , Smith David M. , Radom Leo 
Published: July 2009

AbstractThe degree to which the corrin ring portion of coenzyme B12can facilitate the H‐atom‐abstraction step in the glutamate mutase (GM)‐catalyzed reaction of (S)‐glutamate has been investigated with density functional theory. The crystal structure of GM identifies two possible orientations of the ribose portion of coenzyme B12. In one orientation (A), the OH groups of the ribose extend away from the corrin ring, whereas in the other orientation (B) the OH groups, especially that involving O3′, are instead directed towards the corrin ring. Our calculations identify a sizable stabilization amounting to about 30 kJ mol−1in the transition structure (TS) complex corresponding to orientation B (TSBCorIm). In the TS complex where the ribose instead is positioned in orientation A, no such effect is manifested. The observed stabilization in TSBCorIm appears to be the result of favorable interactions involving O3′ and the corrin ring, including a CH⋅⋅⋅O hydrogen bond. We find that the degree of stabilization is not particularly sensitive to the CoC distance. Our calculations show that any potential stabilization afforded to the H‐atom‐abstraction step by coenzyme B12is sensitive to the orientation of the ribose moiety.
ChemInform Abstract: Tetragonal to Orthorhombic Phase Transition in SmFeAsO: A Synchrotron Powder Diffraction Investigation.
Authors: Martinelli A. , Palenzona A. , Ferdeghini C. , Putti M. , Emerich H. 
Published: July 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Structural and Physical Properties of the 6M BaIrO3: A New Metallic Iridate Synthesized under High Pressure.
Authors: Zhao Jinggeng , Yang Liuxiang , Yu Yong , Li Fengying , Yu Richeng , Jin Changqing 
Published: July 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Robust Antiferromagnetism and Structural Disorder in BixCa1‐xFeO3 Perovskites.
Authors: Chen Wei‐tin , Williams Anthony J. , Ortega‐San‐Martin Luis , Li Ming , Sinclair Derek C. , Zhou Wuzong , Attfield J. Paul 
Published: July 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Pd—Pt Bimetallic Nanodendrites with High Activity for Oxygen Reduction.
Authors: Lim Byungkwon , Jiang Majiong , Camargo Pedro H. C. , Cho Eun Chul , Tao Jing , Lu Xianmao , Zhu Yimei , Xia Younan 
Published: July 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Synthesis, Structure Determination and Calorimetric Study of New Caesium Hydrogen Selenate Arsenate Cs4(SeO4)(HSeO4)2 (H3AsO4).
Authors: Amri M. , Zouari N. , Mhiri T. , Gravereau P. 
Published: July 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: R5Pn3‐Type Phases of the Heavier Trivalent Rare‐Earth‐Metal Pnictides (Pn: Sb, Bi): New Phase Transitions for Er5Sb3 and Tm5Sb3.
Authors: Gupta Shalabh , Leon‐Escamilla E. Alejandro , Wang Fei , Miller Gordon J. , Corbett John D. 
Published: July 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Synthesis and Crystal Structure of the Iron Borate Fe2B2O5.
Authors: Neumair Stephanie C. , Huppertz Hubert 
Published: July 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Efficient Kinetic Resolution of Racemic Amines Using a Transaminase in Combination with an Amino Acid Oxidase.
Authors: Truppo Matthew D. , Turner Nicholas J. , Rozzell J. David 
Published: July 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Mesoporous SBA‐15‐Supported Chiral Catalysts: Preparation, Characterization and Asymmetric Catalysis.
Authors: Liu Guohua , Liu Mouming , Sun Yunqiang , Wang Jianyao , Sun Chuanshou , Li Hexing 
Published: July 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: First Chiral [2.2]Paracyclophane‐Derived Phosphite Ligands: Synthesis and Application in Asymmetric Reactions.
Authors: Lyubimov S. E. , Zhuravskii R. P. , Rozenberg V. I. , Safronov A. S. , Petrovskii P. V. , Davankov V. A. 
Published: July 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Remarkable Catalytic Activity of Silica Nanoparticle in the Bis‐Michael Addition of Active Methylene Compounds to Conjugated Alkenes.
Authors: Banerjee Subhash , Santra Swadeshmukul 
Published: July 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Room‐Temperature Synthesis of Pyrazoles, Diazepines, β‐Enaminones, and β‐Enamino Esters Using Silica‐Supported Sulfuric Acid as a Reusable Catalyst under Solvent‐Free Conditions.
Authors: Chen Xiang , She Jin , Shang Zhi‐Cai , Wu Jun , Zhang Peizhi 
Published: July 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: C—F Bond Cleavage by Intramolecular SN2 Reaction of Alkyl Fluorides with O‐ and N‐Nucleophiles.
Authors: Zhang Laijun , Zhang Wei , Liu Jun , Hu Jinbo 
Published: July 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Selective Isomerization of Epoxides to Allylic Alcohols Catalyzed by TiO2‐Supported Gold Nanoparticles.
Authors: Raptis Christos , Garcia Hermenegildo , Stratakis Manolis 
Published: July 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Efficient and Stereoselective Rearrangement of Baylis—Hillman Acetates Catalyzed by Gold(I) Chloride/Silver(I) Trifluoromethanesulfonate.
Authors: Liu Yunkui , Mao Dajie , Qian Jianqiang , Lou Shaojie , Xu Zhenyuan , Zhang Yongmin 
Published: July 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Oxoammonium Salt/NaClO2: An Expedient, Catalytic System for One‐Pot Oxidation of Primary Alcohols to Carboxylic Acids with Broad Substrate Applicability.
Authors: Shibuya Masatoshi , Sato Takahisa , Tomizawa Masaki , Iwabuchi Yoshiharu 
Published: July 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: A Mild, Simple and Efficient Method for Selective α‐Monobromination of 1,3‐Diketones and β‐Keto‐esters Using Pyridium Bromochromate.
Authors: Sarrafi Yaghoub , Sadatshahabi Marzieh , Alimohammadi Kamal 
Published: July 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Highly Efficient Michael Addition Reaction of Amines Catalyzed by Silica‐Supported Aluminum Chloride.
Authors: Saidi Mohammad R. , Pourshojaei Yaghoub , Aryanasab Fezzeh 
Published: July 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Microwave‐Accelerated Selective Acylation of (Hydroxyalkyl)phenols Using Acid Chlorides.
Authors: Miyazawa Toshifumi , Yamamoto Masato , Maeda Yuki 
Published: July 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: A Diastereoselective Unique Route to Cyclopropanes Functionalized at All Three Ring Carbon Atoms from Acyclic Vinyl Sulfone Modified Carbohydrates.
Authors: Atta Ananta Kumar , Pathak Tanmaya 
Published: July 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Highly Enantioselective Synthesis of Nitrocyclopropanes via Organocatalytic Conjugate Addition of Bromomalonate to α,β‐Unsaturated Nitroalkenes.
Authors: Xuan Yi‐ning , Nie Shao‐zhen , Dong Li‐ting , Zhang Jun‐min , Yan Ming 
Published: July 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Studies on Cu(I)‐Catalyzed Synthesis of Simple 3‐Substituted 1,2‐Allenes and Optically Active 2‐Substituted Secondary 2,3‐Allenols.
Authors: Li Jing , Zhou Chao , Fu Chunling , Ma Shengming 
Published: July 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Efficient One‐Pot Synthesis of 2‐Chloro‐1,1,1‐trifluoro‐2‐alkenes under Solvent‐Free Conditions.
Authors: Chen Mu‐Wang , Zhang Xing‐Guo , Zhong Ping , Hu Mao‐Lin 
Published: July 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Preparation of 1,1′‐Oxy‐bis(3,3‐bis(trifluoromethyl)‐3(1H)‐1,2‐benziodoxole) and 2‐(N‐(p‐Toluenesulfonyl)imino)iodobenzylmethyl Ether.
Authors: Blake Alexander J. , Novak Andrew , Davies Madeline , Robinson Richard I. , Woodward Simon 
Published: July 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Isoquinolinium Bromochromate: An Efficient and Stable Reagent for Bromination of Hydroxylated Aromatic Compounds and Oxidation of Alcohols
Authors: Khansole Sandeep V. , Patwari Shivaji B. , Vibhute Archana Y. , Vibhute Yeshwant B. 
Published: July 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Construction of Highly Active Ruthenium(II) NNN Complex Catalysts Bearing a Pyridyl‐Supported Pyrazolyl‐Imidazolyl Ligand for Transfer Hydrogenation of Ketones.
Authors: Zeng Fanlong , Yu Zhengkun 
Published: July 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Highly Diastereo‐ and Enantioselective Direct Aldol Reactions Promoted by Water‐Compatible Organocatalysts Bearing a Pyrrolidinyl‐Camphor Structural Scaffold.
Authors: Tzeng Zheng‐Hao , Chen Hung‐Yao , Reddy Raju Jannapu , Huang Ching‐Ting , Chen Kwunmin 
Published: July 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Regioselective Cleavage of 2‐Aryloxymethyloxiranes to 3‐Aryloxy‐1‐halogenopropan‐2‐ols
Authors: Maciejewski M. , Poltorak K. , Kaminska J. E. 
Published: July 2009

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