bluuebunny/crossref_metadata_2025_split huggingface dataset:
Preparation and Decarboxylative Rearrangement of (Z)‐Enyne Esters.
Authors: Woo Jacqueline C. S. , Walker Shawn D. , Faul Margaret M. 
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.
Direct Conversion of Aldehydes to Acyl Azides Using tert‐Butyl Hypochlorite.
Authors: Arote Nitin D. , Akamanchi Krishnacharya G. 
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.
Easily Accessible and Highly Tunable Indolyl Phosphine Ligands for Suzuki—Miyaura Coupling of Aryl Chlorides.
Authors: So Chau Ming , Lau Chak Po , Kwong Fuk Yee 
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.
A Practical and Efficient Synthesis of 5′‐Substituted m‐Terphenyls.
Authors: Kehlbeck Joanne D. , Dimise Eric J. , Sparks Sarah M. , Ferrara Skylar , Tanski Joseph M. , Anderson Craig M. 
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.
A New Approach to the Synthesis of Benzylidene Derivatives of 1‐(α‐Aminobenzyl)‐2‐naphthols (Betti Bases), Promising Chiral Inductors.
Authors: Zheltukhin Victor F. , Metlushka Kirill E. , Sadkova Dilyara N. , McKenna Charles E. , Kashemirov Boris A. , Alfonsov Vladimir A. 
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(I)‐Catalyzed Enantioselective Hydroamination of N‐Allenyl Carbamates.
Authors: Zhang Zhibin , Bender Christopher F. , Widenhoefer Ross A. 
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.
2‐Aminopyridinium Ions Activate Nitroalkenes Through Hydrogen Bonding.
Authors: Takenaka Norito , Sarangthem Robindro Singh , Seerla Sreehari Kumar 
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 Herbicidal Activities of a Series of Di(aminopyrazolyl) Ketone Derivatives.
Authors: Li Jun‐fei , Zhu You‐quan , Wang Xin , Yang Hua‐zheng 
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.
Phase‐Transfer Catalytic Synthesis and Hypocholesterolemic Activity of Thiazino[3,2‐a]benzimidazole and Its Silicon Analogue.
Authors: Abele E. , Abele R. , Arsenyan P. , Belyakov S. , Veveris M. , Lukevics E. 
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.
Microwave Assisted Synthesis of Coumarins via Potassium Carbonate Catalyzed Knoevenagel Condensation in 1‐n‐Butyl‐3‐methylimidazolium Bromide Ionic Liquid.
Authors: Valizadeh Hassan , Shockravi Abbas , Gholipur H. 
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 Antimycobacterial Activity of 4‐(5‐Substituted‐1,3,4‐oxadiazol‐2‐yl)pyridines.
Authors: Navarrete‐Vazquez Gabriel , Molina‐Salinas Gloria , Duarte‐Fajardo Zetel Vahi , Vargas‐Villarreal Javier , Estrada‐Soto Samuel , Gonzalez‐Salazar Francisco , Hernandez‐Nunez Emanuel , Said‐Fernandez Salvador 
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.
Dimethylformamide Dimethyl Acetal in Heterocylic Synthesis: Synthesis of Polyfunctionally Substituted Pyridine Derivatives as Precursors to Bicycles and Polycycles.
Authors: Abu‐Shanab Fathi A. , Hessen A. M. , Mousa S. A. 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 of Novel Uracil Nonnucleosides Analogues of 3,4‐Dihydro‐2‐alkylthio‐6‐benzyl‐4‐oxopyrimidines and 6‐Benzyl‐1‐ethoxymethyl‐5‐isopropyluracil.
Authors: El‐Brollosy Nasser R. , Al‐Omar Mohamed A. , Al‐Deeb Omar A. , El‐Emam Ali A. , Nielsen Claus 
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.
Silica Gel/NaHSO4: An Efficient and Recyclable Heterogeneous Catalyst for High Yield Synthesis of 1,5‐Benzodiazepine Derivatives under Microwave Irradiation.
Authors: Chari M. Adharvana , Shobha D. , Syamasundar K. 
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.
Palladium‐Catalyzed Selective Cross‐Addition of Triisopropylsilylacetylene to Internal and Terminal Unactivated Alkynes.
Authors: Tsukada Naofumi , Ninomiya Satoshi , Aoyama Yoshimi , Inoue Yoshio 
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.
Expeditious Synthesis of Glycosylated Phthalocyanines.
Authors: Alvarez‐Mico Xavier , Calvete Mario J. F. , Hanack Michael , Ziegler Thomas 
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.
Four Additional Meroterpenes Produced by Penicillium sp. Found in Association with Melia azedarach. Possible Biosynthetic Intermediates to Austin
Authors: Fill Taicia Pacheco , Pereira Grace Kelli , Geris dos Santos Regina M. , Rodrigues‐Fo Edson 
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 NMR Analysis of Spiranic Heterocycles from Carbohydrate Derivatives.
Authors: Martins Alho Miriam A. , D'Accorso Norma B. 
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.
Further Daphniphyllum Alkaloids from the Leaves of Daphniphyllum macropodum Miq.
Authors: Li Zhen‐Yu , Chen Ping , Xu Hong‐Gui , Peng Shu‐Ying , Yang Yi‐Ming , Zhao Zhong‐Zhen , Guo Yue‐Wei 
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.
Syntheses of Acyclic C‐Glycosidic Derivatives of 1,2,4‐Triazoles by Cycloadditions of 1‐Aza‐2‐azoniaallene Salts to D‐Glucononitrile‐2,3,4,5,6‐pentaacetate.
Authors: Hassan N. A. 
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, SAR, and X‐Ray Structure of Novel Potent DPPIV Inhibitors: Oxadiazolyl Ketones.
Authors: Koh Jong Sung , 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.
Allosteric Modifiers of Neuronal Nicotinic Acetylcholine Receptors: New Methods, New Opportunities
Authors: Moaddel Ruin , Jozwiak Krzysztof , Wainer Irving W. 
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.
Experimental and Computational Procedures for the Assessment of Protein Complexes on a Genome‐Wide Scale
Authors: Musso Gabriel A. , Zhang Zhaolei , Emili Andrew 
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.
Accurate Mass Measurements in Proteomics
Authors: Liu Tao , Belov Mikhail E. , Jaitly Navdeep , Qian Wei‐Jun , Smith Richard D. 
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.
The N‐Acylethanolamine‐Mediated Regulatory Pathway in Plants
Authors: Kilaru Aruna , Blancaflor Elison B. , Venables Barney J. , Tripathy Swati , Mysore Kirankumar S. , Chapman Kent D. 
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.
From Cocaine to Innovative Antiemetics. Medicinal Chemistry of 5‐HT3 Receptor Antagonists
Authors: Zettl Heiko , Schubert‐Zsilavecz Manfred , Siebert Carsten D. 
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.
An analytical approach to the design of quiet cylindrical asymmetric gradient coils in MRI
Authors: Forbes Lawrence K. , Brideson Michael A. , Crozier Stuart , While Peter T. 
Published: October 2007

AbstractWe consider the design of asymmetric gradient coils in a conventional cylindrical bore magnetic resonance imaging system. The gradient coils are switched on and off during the scan, and are therefore subject to Lorentz forces that cause them to buckle during the switching process. This in turn creates a pressure wave within the coil, and that gives rise to acoustic noise. We present a simplified linearized model for the deflection of the coil due to electromagnetic forces, which is amenable to solution using analytical methods. Closed‐form solutions for the coil deflection and the pressure pulse and noise level within the coil are obtained. These are used to design new coil winding patterns so as to reduce the acoustic noise. Sample results are shown both for unshielded and shielded gradient coils. Extensions of this model are indicated, although it is suggested that the advantages of the present closed‐form solutions might then not be available, and fully numerical solutions may be needed instead. © 2007 Wiley Periodicals, Inc. Concepts Magn Reson Part B (Magn Reson Engineering) 31B: 218–236, 2007
A 19F and 1H goniometric split‐millicoil NMR probe for solid‐state NMR
Authors: Devries Jeffrey S. , Zhao Xingang , Sykes Brian D. 
Published: October 2007

AbstractTo allow for single‐crystal nuclear magnetic resonance (scNMR) investigations, an existing narrow bore high‐field double‐resonance millicoil 19F and 1H solid‐state NMR probe was modified by adding a goniometer stage to the top. The goniometer was kept outside of the radiofrequency (RF) transceiver coil for improved filling factor and probe sensitivity. Because of the large size of single crystal grown, the transceiver coil was changed from a standard millicoil to a split‐millicoil, or crude helmholtz coil, design with effects on probe performance further studied herein. The type of goniometer and crystal sample holder chosen allows for accurate rotation of the single crystal in all three orthogonal planes (x, y, and z) while allowing for the sample to be easily removed forX‐ray diffraction study. Careful consideration was taken in selection of non‐fluorinated materials making up the probe head to reduce unwanted 19F background in the NMR signal. Goniometer functionality is demonstrated by 19F scNMR rotation spectra of 5‐fluoro‐DL‐tryptophan (5F‐DL‐Trp) required to determine the independent elements of its 19F chemical shielding anisotropic tensor. © 2007 Wiley Periodicals, Inc. Concepts Magn Reson Part B (Magn Reson Engineering) 31B: 203–208, 2007
An etale approach to the Novikov conjecture
Authors: Dranishnikov A. N. , Ferry S. C. , Weinberger S. A. 
Published: October 2007

AbstractWe show that the rational Novikov conjecture for a group Γ of finite homological type follows from the mod 2 acyclicity of the Higson compactification of an EΓ. We then show that for groups of finite asymptotic dimension, the Higson compactification is mod p acyclic for all p and deduce the integral Novikov conjecture for these groups. © 2007 Wiley Periodicals, Inc.
A gradient flow approach to an evolution problem arising in superconductivity
Authors: Ambrosio Luigi , Serfaty Sylvia 
Published: October 2007

AbstractWe study an evolution equation proposed by Chapman, Rubinstein, and Schatzman as a mean‐field model for the evolution of the vortex density in a superconductor. We treat the case of a bounded domain where vortices can exit or enter the domain. We show that the equation can be derived rigorously as the gradient flow of some specific energy for the Riemannian structure induced by the Wasserstein distance on probability measures. This leads us to some existence and uniqueness results and energy‐dissipation identities. We also exhibit some “entropies” that decrease through the flow and allow us to get regularity results (solutions starting in Lp, p > 1, remain in Lp). © 2007 Wiley Periodicals, Inc.
Relative asymptotic behavior of pseudoholomorphic half‐cylinders
Authors: Siefring Richard 
Published: October 2007

AbstractIn this article we study the asymptotic behavior of pseudoholomorphic half‐cylinders that converge exponentially to a periodic orbit of a vector field defined by a framed stable Hamiltonian structure. Such maps are of central interest in symplectic field theory and its variants (symplectic Floer homology, contact homology, and embedded contact homology). We prove a precise formula for the asymptotic behavior of the “difference” of two such maps, generalizing results from [6, 7, 12, 15]. Using this result with a technique from [14], we then show that a finite collection of pseudoholomorphic half‐cylinders asymptotic to coverings of a single periodic orbit is smoothly equivalent to solutions to a linear equation. © 2007 Wiley Periodicals, Inc.
Semantic representation of scientific documents for the e‐science Knowledge Grid
Authors: Luo Xiangfeng , Fang Ning , Hu Bo , Yan Kai , Xiao Huizhe 
Published: October 2007

AbstractSemantic representation of a topic is the basic element representation of a scientific document, which can be reflected by keywords' relations and their weights, as well as the state values of co‐occurring keywords in a documental fragment in which a topic is discussed. Concept lattice and probability statistical methods are proposed to generate fuzzy cognitive maps (FCMs) as the original semantic representation of documental fragments (SRDFs) for the e‐science Knowledge Grid. The additive capability of FCMs is used to merge SRDFs for reducing the noise and redundant information hidden in the original SRDFs. The loss of documental information in the merging process of SRDFs is measured by the proposed semantic merging entropy. Based on the distributional property of keywords on SRDFs, semantic distribution entropy is introduced to evaluate the change of keywords' distribution on SRDFs with the merging process. The semantic representation of a scientific document is automatically generated by the interconnection of the merged SRDFs belonging to one domain. The generating, merging and evaluating methods of the semantic representation of a scientific document are validated by experiments. The proposed semantic representation highlights the relations among keywords and topics, which reduces the complexity of document analysis in an e‐science Knowledge Grid effectively. Copyright © 2007 John Wiley & Sons, Ltd.
High Osmolarity and L‐DOPA Augment Release via the Fusion Pore in PC12 Cells
Authors: Sombers Leslie A. , Wittenberg Nathan J. , Maxson Marc M. , Adams Kelly L. , Ewing Andrew G. 
Published: October 2007

AbstractWe have amperometrically measured dopamine release from rat pheochromocytoma cells (PC12 cells) in high osmolarity conditions with and without L‐3,4‐dihydroxyphenylalanine (L‐DOPA) treatment. We observe an increase in the number of release events displaying a prespike feature or “foot” when the cells are stimulated in high osmolarity saline. We also see an increase in foot area and duration when cells are stimulated in high osmolarity saline, or high osmolarity saline subsequent to incubation with the dopamine precursor L‐DOPA in isotonic saline, which serves to increase the vesicle size. The data suggest that membrane biophysics are an important component in defining the rate, duration and amount of neurotransmitter release via the fusion pore.
Systems engineering without an engineer: Why we need systems biology
Authors: C. Way Jeffrey , A. Silver Pamela 
Published: October 2007

AbstractIn this review, we address the justification for creating a new scientific discipline, and suggest possible goals for systems biology. We argue that systems biology is distinct from genomics and bioinformatics, as well as older disciplines such as medicine, evolutionary biology, and traditional molecular biology. Systems biology has the potential to address questions about the quantitative behavior and design of biological systems, which are not the central focus of other areas of biology. We discuss spontaneously arising biological oscillators as an example of a phenomenon that requires a systems‐biological explanation. We also argue that there is, from evolutionary biology, an emerging view of organisms as “poorly oiled machines,” and that systems biology is needed to understand and predict the behavior of organisms that have not been rationally constructed. © 2007 Wiley Periodicals, Inc. Complexity, 2007
Single lymphocyte analysis with a microwell array chip
Authors: Tokimitsu Yoshiharu , Kishi Hiroyuki , Kondo Sachiko , Honda Ritsu , Tajiri Kazuto , Motoki Kazumi , Ozawa Tatsuhiko , Kadowaki Shinichi , Obata Tsutomu , Fujiki Satoshi , Tateno Chise , Takaishi Hideki , Chayama Kazuaki , Yoshizato Katsutoshi , Tamiya Eiichi , Sugiyama Toshiro , Muraguchi Atsushi 
Published: October 2007

AbstractFollowing genomics and proteomics, cytomics, a novel method of looking at life, has emerged for analyzing large populations of cells on a single‐cell basis with multiple parameters in a quantitative manner. We have developed a highly integrated live‐cell microarray system for analyzing the cellular responses of individual cells using a microwell array chip that has 234,000 microwells each of which is just large enough to fit a single cell. Compared with flow cytometry and microscope‐based methods, our system can analyze the history of the cellular responses of a large number of cells. We have successfully applied the system to analyze human antigen‐specific B‐cells and produced human monoclonal antibodies (MoAb) against hepatitis B virus surface antigen. We have also constructed a mouse system to assess hepatitis B virus‐neutralization activity and have demonstrated the neutralization activity of our antibodies. Our technology should expand the horizons of cell analysis as well as enable generation of human MoAb for antibody‐based therapeutics and diagnosis for infectious diseases such as hepatitis viruses. © 2007 International Society for Analytical Cytology
Human sperm DNA fragmentation: Correlation of TUNEL results as assessed by flow cytometry and optical microscopy
Authors: Domínguez‐Fandos David , Camejo María Isabel , Ballescà José Luis , Oliva Rafael 
Published: October 2007

AbstractAn association between DNA fragmentation in sperm determined by the terminal deoxynucleotidyl transferase [TdT]‐mediated deoxyuridine triphosphate (dUTP) nick end labeling (TUNEL) assay and the incidence of reproductive failure has been reported, either using flow cytometry or optical microscopy. However, the results obtained using each of these two approaches are different. Since there is a relative lack of studies standardizing these two approaches, the direct comparison of the results described in the different articles is difficult at present. To allow the comparison of the TUNEL results obtained using flow cytometry and optical microscopy, we applied these two approaches in a total of 66 human sperm samples. A positive correlation is detected in the TUNEL results as measured by flow cytometry and optical microscopy (Spearman; r = 0.720, P < 0.001). The percentage of TUNEL‐positive spermatozoa assessed by flow cytometry is 2.6 times higher than that detected in optical microscopy (39.7% ± 23.1% versus 15.3% ± 10.3%). Although there is a good correlation of the TUNEL results obtained by flow cytometry and optical microscopy, the percentages obtained with either technique are different. Therefore, the TUNEL results described in the present work should be valuable to compare the results described in many independent articles, using either optical microscopy or flow cytometry. © 2007 International Society for Analytical Cytology
Automated learning of generative models for subcellular location: Building blocks for systems biology
Authors: Zhao Ting , Murphy Robert F. 
Published: October 2007

AbstractThe goal of location proteomics is the systematic and comprehensive study of protein subcellular location. We have previously developed automated, quantitative methods to identify protein subcellular location families, but there have been no effective means of communicating their patterns to integrate them with other information for building cell models. We built generative models of subcellular location that are learned from a collection of images so that they not only represent the pattern, but also capture its variation from cell to cell. Our models contain three components: a nuclear model, a cell shape model and a protein‐containing object model. We built models for six patterns that consist primarily of discrete structures. To validate the generated images, we showed that they are recognized with reasonable accuracy by a classifier trained on real images. We also showed that the model parameters themselves can be used as features to discriminate the classes. The models allow the synthesis of images with the expectation that they are drawn from the same underlying statistical distribution as the images used to train them. They can potentially be combined for many proteins to yield a high resolution location map in support of systems biology. © 2007 International Society for Analytical Cytology