bluuebunny/crossref_metadata_2025_split huggingface dataset:
Ring‐Closing Metathesis Approach to a 16‐Membered Macrocycle of Kendomycin.
Authors: Sengoku Tetsuya , Uemura Daisuke , Arimoto Hirokazu 
Published: October 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.
Simple Synthesis of Eudesmin Through Oxidative Coupling of Carbanions and Reductive Catalytic Hydrogenation of Diketo Diester.
Authors: Jung Jae‐Chul , Park Oee‐Sook 
Published: October 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 Synthesis of (R)‐(‐)‐Rhododendrol, the Aglycone of the Hepatoprotective Agent Rhododendrin.
Authors: Sabitha Gowravaram , Thirupathaiah B. , Yadav J. S. 
Published: October 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 Pharmacological Activity of Urea and Thiourea Derivatives of 4‐Azatricyclo[5.2.2.02,6]undec‐8‐ene‐3,5‐dione.
Authors: Struga Marta , Kossakowski Jerzy , Kedzierska Ewa , Fidecka Sylwia , Stefanska Joanna 
Published: October 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.
Factors in Gold Nanocatalysis: Oxidation of CO in the Non‐Scalable Size Regime
Authors: Landman Uzi , Yoon Bokwon , Zhang Chun , Heiz Ueli , Arenz Matthias 
Published: October 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.
Gold Nanoparticles on Ceria: Importance of O Vacancies in the Activation of Gold
Authors: Rodriguez J. A. , Wang X. , Liu P. , Wen W. , Hanson J. C. , Hrbek J. , Perez M. , Evans J. 
Published: October 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.
Organocatalytic Enantioselective Michael and Hetero‐Michael Reactions
Authors: Vicario Jose L. , Badia Dolores , Carrillo Luisa 
Published: October 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.
Drug‐Induced Antifactor VIII Antibodies
Authors: Franchini Massimo , Capra Franco , Nicolini Nicoletta , Veneri Dino , Manzato Franco , Baudo Francesco , Lippi Giuseppe 
Published: October 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.
Recent Advances in the Benzannulation of Substituted 3‐Alkoxycarbonyl‐3,5‐hexadienoic Acids and 3‐Alkoxycarbonylhex‐3‐en‐5‐ynoic Acids to Polysubstituted Aromatics
Authors: Serra Stefano , Fuganti Claudio , Brenna Elisabetta 
Published: October 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 Reactivity of 4‐, 5‐ and 6‐Azaindoles.
Authors: Popowycz Florence , Merour Jean‐Yves , Joseph Benoit 
Published: October 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.
Conversion of CO2 into Formate by Homogeneously Catalyzed Hydrogenation in Water: Tuning Catalytic Activity and Water Solubility Through the Acid—Base Equilibrium of the Ligand
Authors: Himeda Yuichiro 
Published: October 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.
Complex Catalysts from Self‐Repairing Ensembles to Highly Reactive Air‐Based Oxidation Systems
Authors: Hill Craig L. , Delannoy Laurent , Duncan Dean C. , Weinstock Ira A. , Renneke Roman F. , Reiner Richard S. , Atalla Rajai H. , Han Jong Woo , Hillesheim Daniel A. , Cao Rui , et al. et al. 
Published: October 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.
New Mechanisms Centered on Reactive Intermediates: Examples from Diazirine and Carbene Chemistry
Authors: Moss Robert A. , Tian Jingzhi , Chu Gaosheng , Sauers Ronald R. , Krogh‐Jespersen Karsten 
Published: October 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.
Electron Delocalization and Aromaticity Measures within the Hueckel Molecular Orbital Method
Authors: Matito Eduard , Feixas Ferran , Sola Miquel 
Published: October 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.
Multinuclear Magnetic Resonance Imaging as a Multifunctional Tool for the Investigation of the Properties of Materials, Transport Processes and Catalytic Reactions
Authors: Koptyug I. V. , Lysova A. A. , Kovtunov K. V. , Zhivonitko V. V. , Khomichev A. V. , Sagdeev R. Z. 
Published: October 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.
Molecular Aspects on the Interaction of Protoberberine, Benzophenanthridine, and Aristolochia Group of Alkaloids with Nucleic Acid Structures and Biological Perspectives
Authors: Maiti Motilal , Kumar Gopinatha Suresh 
Published: October 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.
Fluorescence Microscopy: Bridging the Phase Gap in Catalysis
Authors: Roeffaers Maarten B. J. , Hofkens Johan , De Cremer Gert , De Schryver Frans C. , Jacobs Pierre A. , De Vos Dirk E. , Sels Bert F. 
Published: October 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 New Macrocyclic Cu(II) Complexes from Various Diamines, Copper(II) Nitrate and 1,4‐Bis(2‐formylphenoxy)butane
Authors: ILHAN Salih , TEMEL Hamdi , KILIC Ahmet 
Published: October 2007

AbstractSix new macrocyclic complexes were synthesized by a template reaction of 1,4‐bis(2‐formylphenoxy)butane with diamines and Cu(NO3)2·3H2O and their structures were proposed on the basis of elemental analysis, FT‐IR, UV‐Vis, magnetic susceptibility measurements, molar conductivity measurements and mass spectra. The metal to ligand molar ratios of the Cu(II) complexes were found to be 1:1. The Cu(II) complexes are 1:2 electrolytes as shown by their molar conductivities (Λm) in DMF at 10−3 mol·L−1. Due to the existence of free ions the Cu(II) complexes are electrically conductive. Their configurations were proposed to be probably distorted octahedral.
Curcumin‐Derived Pyrazoles and Isoxazoles: Swiss Army Knives or Blunt Tools for Alzheimer's Disease?
Authors: Narlawar Rajeshwar , Pickhardt Marcus , Leuchtenberger Stefanie , Baumann Karlheinz , Krause Sabine , Dyrks Thomas , Weggen Sascha , Mandelkow Eckhard , Schmidt Boris 
Published: October 2007

AbstractCurcumin binds to the amyloid β peptide (Aβ) and inhibits or modulates amyloid precursor protein (APP) metabolism. Therefore, curcumin‐derived isoxazoles and pyrazoles were synthesized to minimize the metal chelation properties of curcumin. The decreased rotational freedom and absence of stereoisomers was predicted to enhance affinity toward Aβ42 aggregates. Accordingly, replacement of the 1,3‐dicarbonyl moiety with isosteric heterocycles turned curcumin analogue isoxazoles and pyrazoles into potent ligands of fibrillar Aβ42 aggregates. Additionally, several compounds are potent inhibitors of tau protein aggregation and depolymerized tau protein aggregates at low micromolar concentrations.
Hyrtiosal, from the Marine Sponge Hyrtios erectus, Inhibits HIV‐1 Integrase Binding to Viral DNA by a New Inhibitor Binding Site
Authors: Du Li , Shen Liangliang , Yu Zhiguo , Chen Jing , Guo Yuewei , Tang Yun , Shen Xu , Jiang Hualiang 
Published: October 2007

AbstractHIV‐1 integrase (IN) is composed of three domains, the N‐terminal domain (NTD, residues 1–50), the catalytic core domain (CCD, residues 51–212), and the C‐terminal domain (CTD, residues 213–288). All the three domains are required for the two known integration reactions. CCD contains the catalytic triad and is believed to bind viral DNA specifically, and CTD binds viral DNA in a nonspecific manner. As no clear evidence has confirmed the involvement of NTD in DNA binding directly, NTD has not been seriously considered and less is known about its function in viral replication. In the current work, using a SPR technology‐based assay, the HIV‐1 viral DNA was determined to bind directly to NTD with a KD value of 8.8 μM, suggesting that the process of preintegrated complex formation for HIV‐1 IN might involve the direct interaction of NTD with viral DNA in addition to binding of viral DNA to the catalytic core domain and C‐terminal domain. Moreover, such viral DNA/IN binding could be inhibited by the marine product hyrtiosal from the marine sponge Hyrtios erectus with an IC50 of 9.60±0.86 μM. Molecular dynamic analysis correlated with a site‐directed mutagenesis approach further revealed that such hyrtiosal‐induced viral DNA/IN binding inhibition was caused by the fact that hyrtiosal could bind HIV‐1 NTD at Ser17, Trp19, and Lys34. As hyrtiosal was recently discovered by us as a protein tyrosine phosphatase 1B (PTP1B) inhibitor,1 this work might also supply multiple‐target information for this marine product, and the verified HIV‐NTD/HIV‐1 IN interaction model could have further implications for new HIV‐1 IN inhibitor design and evaluation.
Self‐Assembly of Amphiphilic Hexapyridinium Cations at the Air/Water Interface and on HOPG Surfaces
Authors: Gong Haofei , Bredenkötter Björn , Meier Christoph , Hoffmann‐ Richter Carola , Ziener Ulrich , Kurth Dirk G. , Volkmer Dirk 
Published: October 2007

AbstractMono‐ and multilayers of a novel amphiphilic hexapyridinium cation with six eicosyl chains (3) are spread at the air/water interface as well as on highly ordered pyrolytic graphite (HOPG). On water, the monolayer of 3 is investigated by recording surface pressure/area and surface potential/area isotherms, and by Brewster angle microscopy (BAM). Self‐organized tubular micelles with an internal edge‐on orientation of molecules form at the air/water interface at low surface pressure whereas multilayers are present at high surface pressure, after a phase transition. Packing motifs suggesting a tubular arrangement of the constituting molecules were gleaned from atomic force microscopy (AFM) investigations of Langmuir–Blodgett (LB) monolayers being transferred on HOPG at different surface pressures. These LB film structures are compared to the self‐assembled monolayer (SAM) of 3 formed via adsorption from a supersaturated solution, which is studied by scanning tunnelling microscopy (STM). On HOPG the SAM of 3 consists of nanorods with a highly ordered edge‐on packing of the aromatic rings and an arrangement of alkyl chains which resembles the packing of molecules at the air/water interface at low surface pressure. Additional details of the molecular packing were gleaned from single‐crystal X‐ray structure analysis of the hexapyridinium model compound 2b, which possesses methyl instead of eicosyl residues.
Marshmallows used as saliva stimulant do not affect cortisol concentrations: Finally a palatable alternative for toddler saliva collection
Authors: D. Clements Andrea , Parker C. Richard , Dixon Wallace E. , Salley Brenda 
Published: October 2007

AbstractTwo studies were conducted to validate marshmallows as a saliva stimulant for use with toddlers. First, cortisol concentrations from 14 subjects (ages 6–46 years) were compared using three saliva collection methods: (1) plain cotton dental roll, (2) dental roll with one mini‐marshmallow, and (3) expectorating into a collection tube using no cotton or stimulant. EIA was used for analyses. There were no significant differences among cortisol concentrations. Second, saliva collection compliance rate was compared for 21‐month‐olds (n = 51) using either flavored drink crystal‐ (compliance rate = 16.7%) or marshmallow‐flavored (compliance rate = 60%) dental rolls for saliva collection (χ2 )1) = 4.02, p = .045). These studies indicate that marshmallow is a viable option for saliva stimulation to determine toddler cortisol concentrations using EIA. © 2007 Wiley Periodicals, Inc. Dev Psychobiol 49: 702–707, 2007.
Maternal anesthesia via isoflurane or ether differentially affects pre‐and postnatal behavior in rat offspring
Authors: Ronca April E. , Abel Regina A. , Alberts Jeffrey R. 
Published: October 2007

AbstractOur understanding of prenatal behavior has been significantly advanced by techniques for direct observation and manipulation of unanesthetized, behaving rodent fetuses with intact umbilical connections to the mother. These techniques involve brief administration of an inhalant anesthesic, enabling spinal transection of the rat or mouse dam, after which procedures can continue with unanesthetized dams and fetuses. Because anesthetics administered to the mother can cross the placental barrier, it is possible that fetuses are anesthetized to varying degrees. We compared in perinatal rats the effects of prenatal maternal exposure to two inhalant anesthetics: ether and isoflurane. Fewer spontaneous fetal movements and first postpartum nipple attachments were observed following maternal exposure to ether as compared to isoflurane. Neonatal breathing frequencies and oxygenation did not account for group differences in nipple attachment. Our results provide evidence that the particular inhalant anesthetic employed in prenatal manipulation studies determines frequencies of perinatal behavior. © 2007 Wiley Periodicals, Inc. Dev Psychobiol 49: 675–684, 2007.
Synapses, circuits, and the ontogeny of learning
Authors: Hunt Pamela S. , Fanselow Michael S. , Richardson Rick , Mauk Michael D. , Freeman John H. , Stanton Mark E. 
Published: October 2007

AbstractThis article summarizes the proceedings of a symposium organized by Mark Stanton and Pamela Hunt and presented at the annual meeting of the International Society for Developmental Psychobiology. The purpose of the symposium was to review recent advances in neurobiological and developmental studies of fear and eyeblink conditioning with the hope of discovering how neural circuitry might inform the ontogenetic analyses of learning and memory, and vice versa. The presentations were: (1) Multiple Brain Regions Contribute to the Acquisition of Pavlovian Fear by Michael S. Fanselow; (2) Expression of Learned Fear: Appropriate to Age of Training or Age of Testing by Rick Richardson; (3) Trying to Understand the Cerebellum Well Enough to Build One by Michael D. Mauk; and (4) The Ontogeny of Eyeblink Conditioning: Neural Mechanisms by John H. Freeman. Taken together, these presentations converge on the conclusions that (1) seemingly simple forms of associative learning are governed by multiple “engrams” and by temporally dynamic interactions among these engrams and other circuit elements and (2) developmental changes in these interactions determine when and how learning emerges during ontogeny. © 2007 Wiley Periodicals, Inc. Dev Psychobiol 49: 649–663, 2007.
Analysis of lightning surge propagation in wind farm
Authors: Yasuda Yoh , Hara Takehisa , Funabashi Toshihisa 
Published: October 2007

AbstractWind power generation is expected to become more important in future distribution systems. Although several prospective reports such as IEC 61400‐24 and NREL SR‐500‐31115 indicate an insulation scheme and grounding design for lighting protection, there still seems to be too few investigations on the problems. This paper therefore discusses lightning surge analysis using a wind farm model with 2 or 10 ideal wind turbines. Changing parameters such as grounding resistance and lightning strike points, several cases were studied. As a result of the analysis using digital simulator ARENE, it is clear that the surge tends to propagate toward the end of a distribution line in a wind farm and there is the possibility of insulation accidents at the other wind turbines when lightning attacks a wind turbine. © 2007 Wiley Periodicals, Inc. Electr Eng Jpn, 162(2): 30– 38, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/eej.20364
Matrix converter control using direct AC/AC conversion approach to reduce output voltage harmonics
Authors: Takeshita Takaharu , Shimada Hiroshi 
Published: October 2007

AbstractThis paper presents a control scheme for matrix converters for reducing the output voltage harmonics. The proposed control scheme is based on the direct AC/AC conversion approach and the carrier‐based PWM control to obtain the constant switching frequency. The proposed scheme can achieve simultaneous control of both the output voltage and the input power factor. A feature of the proposed control scheme is the reduction of both the output voltage harmonics and the number of instances of commutations. The effectiveness of the proposed control algorithm for a matrix converter has been verified by simulations. © 2007 Wiley Periodicals, Inc. Electr Eng Jpn, 162(2): 61–72, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/eej.20550
Ion extraction from magnetically driven shunting‐arc plasma and density estimation at sheath boundary
Authors: Kumagai Osamu , Mukaigawa Seiji , Takaki Koichi , Fujiwara Tamiya , Yukimura Ken , Ego Kenichi 
Published: October 2007

AbstractIon extraction from a magnetically driven shunting arc plasma and the plasma density at the sheath boundary are described in this paper. The plasma density is obtained using current and voltage waveforms for a target which is immersed in the plasma to extract the carbon ions. A 40‐mm‐long carbon rod which is 2 mm in diameter is employed as a solid‐state plasma source. A large current of more than 1 kA is supplied from a charged‐up 20‐µF capacitor to heat the carbon rod and to vaporize the rod materials. The shunting arc plasma generated along the rod surface is driven by the Lorenz force and is accelerated toward the muzzle of a plasma launcher which consists of a pair of 100‐mm‐long carbon plates. A 64‐mm‐diameter brass disk is placed 100 mm away from the carbon rod and is used as the target. A 10‐µs‐wide negative pulse bias voltage is applied to the target for the extraction of the carbon ions from the shunting arc plasma. The ion density near the sheath boundary around the target is obtained using two procedures: utilization of the stationary target current to determine the ion current and/or utilization of the target bias voltage waveforms. The ion density is obtained as 1.1×1015m−3 at µs after the arc ignition using the target current. The density is larger than the density of 5.1×1014m−3 obtained using the waveform of the target voltage. The plasma density is also predicted using a Bohm equation and a momentum conservation equation. The plasma density is 1.6×1015m−3 at 100 µs after the arc ignition. The density decreases as the time from arc ignition increases. © 2007 Wiley Periodicals, Inc. Electr Eng Jpn, 162(2): 1– 9, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/eej.20553
Parameter design of event‐driven logic controller for two‐wheeled vehicle
Authors: Konaka Eiji , Mutou Takashi , Suzuki Tatsuya 
Published: October 2007

AbstractProgrammable Logic Controllers (PLCs) are widely used in industry. In PLC‐based control systems, low‐resolution (especially ON‐/OFF) sensors are inexpensive, and actuators are commonly used because they are compatible with programming languages used in PLCs.PLC switches the actuators ON/OFF as the state of the sensor changes between ON/OFF. In designing PLC‐based systems, the design of the parameters of these sensors and actuators (e.g., position of limit switches and torque of motors) is an important problem because they affect the overall performance of the system. This problem, however, has not yet been fully discussed. In the present paper, a systematic design method for this problem is developed. The main concept is to express the model of the system as a Mixed Logical Dynamical System (MLDS) and to formulate the problem as a mathematical programming problem. The developed idea is applied to the line‐following control of a two‐wheeled vehicle. The usefulness of the proposed method is demonstrated through simulation and experiments. © 2007 Wiley Periodicals, Inc. Electr Eng Jpn, 162(2): 51–60, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/eej.20584
Transient stability considering dynamic load in bulk power system with high DG penetration
Authors: Ueda Tomoyuki , Komami Shintaro 
Published: October 2007

AbstractTransient stability may be seriously affected when a large number of distributed generators (DG) stop simultaneously during voltage sag. It is necessary to analyze accurately the dynamics of bulk power systems with high DG penetration. In this paper, transient stability is studied by analyzing power‐angle curves of generators while considering load dynamics and model order reduction at lower voltages. Based on the analysis, a decrease in the load internal resistance after voltage sag causes transient instability of generators. The phenomenon is confirmed through simulation using a one‐machine and one‐load model. This paper also suggests that the simulation results might be misled by traditional bulk power system modeling such as using the static load model and ignoring impedance at lower voltages. As for the numerical simulation, a large level of DG stoppage leads to transient step out in a bulk power system, and the stability is greatly improved by DG voltage regulation. © 2007 Wiley Periodicals, Inc. Electr Eng Jpn, 162(2): 20– 29, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/eej.20608