bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: Bioactive Sesquiterpene Pyridine Alkaloids from Maytenus aquifolium.
Authors: CORSINO J. , DA SILVA BOLZANI V. , PEREIRA A. M. S. , CASTRO FRANCA S. , FURLAN M. 
Published: June 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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: Towards an Effective Chemotherapy of Virus Infections: Therapeutic Potential of Cidofovir [(S)‐1‐[3‐Hydroxy‐2‐(phosphonomethoxy)propyl]cytosine, HPMPC] for the Treatment of DNA Virus Infections.
Authors: DE CLERCQ E. 
Published: June 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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: Adenosine‐5′‐carboxylic Acid.
Authors: PADIYAR G. S. , SESHADRI T. P. 
Published: June 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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: Revised Structure of Flavolipin and Synthesis of Its Isomers.
Authors: SHIOZAKI M. , DEGUCHI N. , ISHIKAWA T. , HARUYAMA H. , KAWAI Y. , NISHIJIMA M. 
Published: June 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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: Tessallatin, a Phenanthropyran from Vanda tessalata.
Authors: ANURADHA V. , RAO N. S. P. 
Published: June 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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: Evolution of in situ Refractories in the 20th Century
Authors: LEE W. E. , MOORE R. E. 
Published: June 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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: Neutron Scattering Studies of the Chains and Ladders in Sr14Cu24O41 and Related Compounds
Authors: MATSUDA M. 
Published: June 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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: The Luminescent Properties of Divalent Europium Complexes of Crown Ethers and Cryptands
Authors: JIANG J. , HIGASHIYAMA N. , MACHIDA K. , ADACHI G. 
Published: June 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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: Molecular Switches of Fluorescence Operating Through Metal Centered Redox Couples
Authors: BERGONZI R. , FABBRIZZI L. , LICCHELLI M. , MANGANO C. 
Published: June 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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 Novel Redox System Consisting of π‐Conjugated Polymers and Transition Metals
Authors: HIRAO T. , HIGUCHI M. , YAMAGUCHI S. 
Published: June 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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: Aldehydes and Ketones
Authors: LAWRENCE N. J. 
Published: June 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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: Recent Advances in Selective Syntheses of 6‐ and 7‐Substituted Pteridines
Authors: MURATA S. , KIGUCHI K. , SUGIMOTO T. 
Published: June 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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: Plants as Industrial Chemical Factories: New Oils from Genetically Engineered Soybeans
Authors: KINNEY A. J. 
Published: June 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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: Antisense Oligonucleotides — A Universal Therapeutic Principle
Authors: UHLMANN E. 
Published: June 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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: C36, a New Carbon Solid
Authors: PISKOTI C. , YARGER J. , ZETTL A. 
Published: June 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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: Supported Liquid Phase Catalysis in Selective Oxidation
Authors: REILLY C. R. , LEROU J. J. 
Published: June 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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: Theoretical Investigation of a Pd(phosphine)2 Group as a Donor Towards [70]Fullerene. Pyramidalized Ethylenes as a Model of Different Sites on [70]Fullerene Surface
Authors: MAGDESIEVA T. V. , BASHILOV V. V. , SOKOLOV V. I. , BUTIN K. P. 
Published: June 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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: Chemical Processes in Solution Studied by an Integral Equation Theory of Molecular Liquids
Authors: HIRATA F. 
Published: June 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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.
Sample preparation methods for the determination of pesticides in foods using CE‐UV/MS
Authors: Kumar Ashwini , Malik Ashok Kumar , Picó Yolanda 
Published: June 2010

AbstractMuch progress has been made in pesticide analysis over the past decade, during this time hyphenated techniques involving highly efficient separation with sensitive detection have become the techniques of choice. Among these, methods based on separation with mass spectrometric detection have resulted in greater likelihood of identification and are acknowledged to be extremely useful and authoritative methods for the determination of pesticide residues but the inherent advantages of the use of CE as a separation technique are well‐known and can be summarized as high separation efficiency, low analysis time, high resolution power, and low consumption of samples and reagents. Although UV is the most widely used detector in CE equipments so far so this detection mode is also included for the review. Even with such powerful instrumental techniques, however, the risk of interference increases with the complexity of the matrix studied, so sample preparation is often the limiting step in systems before instrumental analysis and is still mandatory in many applications, for example, food analysis. This article summarizes the analytical characteristics of the different methods of sample preparation for the determination of pesticide residues in a variety of food matrices, and surveys their recent applications in combination with CE using UV and MS detectors. We will discuss the advantages and the disadvantages of different methods, the instrumental aspects, summarize and conclude the perspectives for the future.
Endpoints of therapy in chronic hepatitis B #
Authors: Feld Jordan J. , Wong David K. H. , Heathcote Jenny E. 
Published: June 2010

Abstract
Because clearance of hepatitis B virus (HBV) infection is rarely, if ever, achievable, the goals of therapy necessarily focus on prevention of bad clinical outcomes. Ideally, therapies would be shown to prevent tangible clinical endpoints like development of cirrhosis, end-stage liver disease and hepatocellular carcinoma. However, these endpoints typically take years or decades to occur and are therefore impractical targets for clinical trials which last only 1-2 years. As a result, surrogate biomarkers that are believed to correlate with long-term outcome are used to evaluate therapy. Of the clinical, biochemical, serological, virological, and histological endpoints that have been evaluated, none has been shown to be ideal on its own. Symptoms are uncommon and aminotransferase levels fluctuate spontaneously. Loss of hepatitis B e antigen (HBeAg) has been the traditional therapeutic endpoint; however, the indefinite durability off treatment and the emergence of HBeAg-negative disease have made it inadequate as the sole goal of therapy. Loss of hepatitis B surface antigen is associated with improved clinical outcomes, but it is rarely achieved with current therapies. Suppression of viral replication, as measured by serum HBV DNA levels, has become the major goal of therapy, particularly if maintained off therapy. Although useful, the significance of viral levels depends on the stage of disease, degree of liver damage, and the type of therapy. Finally, liver biopsy, often considered the gold standard, is invasive, prone to sampling error, and may take years to change significantly.At present, there is no ideal biomarker for evaluation of therapies for hepatitis B. Future research should be directed at development and validation of surrogate markers that accurately predict or reflect clinically relevant outcomes of chronic hepatitis B. (Hepatology 2009;49:S96–S102.)
Undersampled radial MR acquisition and highly constrained back projection (HYPR) reconstruction: Potential medical imaging applications in the post‐Nyquist era
Authors: Mistretta Charles A. 
Published: June 2010

AbstractDuring the past several years there has been extensive study of alternative MR acquisition strategies such as spiral and radial. Vastly undersampled imaging with projections (VIPR) is a three‐dimensional (3D) radial acquisition that provides acceptable images while violating the Nyquist theorem by factors of up to several hundred. For applications like magnetic resonance angiography (MRA), VIPR provides sparse data sets with incoherent artifacts that satisfy the requirements of emerging reconstruction approaches like iterative image norm minimization (compressed sensing) and highly constrained back projection (HYPR). All of these tools can be used in combination with parallel imaging to provide extremely high acceleration factors in MRI. In this review we do not attempt to do justice to the many exciting developments in the general field of constrained reconstruction but focus on preliminary results using VIPR and HYPR for non‐Cartesian, Nyquist‐violating MRI and the extension of HYPR processing to a broad range of medical imaging applications in which the acquisitions satisfy the Nyquist theorem but lack sufficient signal‐to‐noise ratio (SNR), leading to the possibility of radiation reduction, increased ultrasound resolution and field‐of‐view, and improved dynamic display of radiotracers. J. Magn. Reson. Imaging 2009;29:501–516. © 2009 Wiley‐Liss, Inc.
Synthesis and Characterization of Nanocomposites Based on Functional Regioregular Poly(3‐hexylthiophene) and Multiwall Carbon Nanotubes
Authors: Boon Florian , Desbief Simon , Cutaia Lorenzo , Douhéret Olivier , Minoia Andrea , Ruelle Benoît , Clément Sébastien , Coulembier Olivier , Cornil Jérôme , Dubois Philippe , Lazzaroni Roberto 
Published: June 2010

AbstractNew functionalized poly(3‐hexylthiophene)s (P3HT) have been designed and synthesized with the aim of increasing the dispersion of carbon nanotubes (CNT) in solutions and in thin films of semiconducting polymers. Dispersion in solution has been assessed by sedimentation tests while the thin film morphology has been analyzed by TEM and AFM. Both the physisorption of P3HT chains (via pyrene end‐groups) or their chemical grafting (onto amine functions generated on the CNT surface) lead to a much better dispersion in solution and in the solid. In thin films, P3HT fibrils are observed to arrange perpendicular to the CNT surface, which can be understood on the basis of molecular modeling simulations. Finally, the effect of dispersing those P3HT/CNT nanocomposites in bulk‐heterojunction P3HT‐based photovoltaic devices has been evaluated.magnified image
Anisotropy of thermal conductivity in stretched amorphous linear polymers and in strained elastomers
Authors: Hennig J. , Knappe W. 
Published: June 2010

AbstractLinear amorphous high polymers may be made anisotropic by drawing them at temperatures above the glass‐transition temperature and thereafter cooling down in the stretched state. With measurements on polystyrene, poly methylmethacrylate, polyvinylchloride, and polycarbonate it can be shown that thermal conductivity in the direction of Stretch is greater and perpendicular to this direction lower than in the un‐stretched isotropic state. The degree of anisotropy depends on the degree of stretch and on the molecular structure of the polymeric chain. By measuring the anisotropy of thermal expansion it can be demonstrated that thermal expansivity in the direction of stretch will become lower and perpendicular to this direction greater than in the isotropic polymer. There exists a close relation between the anisotropy of thermal conductivity and thermal expansivity. From measurements on polyvinyichloride it follows that anisotropy of thermal conductivity remains rather unchanged when heating the polymer to temperatures above the glass‐transition range in the stretched state. Therefore it may be expected that also strained elastomers will have anisotropy in thermal conductivity. Measurements on several strained elastomers in this direction perpendicular Lo strain had been done which show that strained elastomers with strong polar side‐groups have a considerable amount of anisotropy, while aliphatic polymers like natural rubber and polyisobutylene have no remarkable effects.
Pyrolytic techniques
Authors: Brauer Gerhard M. 
Published: June 2010

AbstractPyrolytic techniques, especially those used in conjunction with gas chromatography, are a very useful tool for elucidating the structure of macromolecules. These methods have not only proven a powerful tool in the qualitative characterization of the gross structure, but have also found an increasing number of applications for the quantitative analysis of copolymeric systems. Recent studies indicating that the shape of the pyrogram is influenced by structural characteristics such as the degree of branching or crosslinking, stereoregularity, and the presence of blocks or grafts in copolymeric systems opens up new avenues for pyrolytic techniques in studios of the ultimate arrangement of monomeric units within the polymer chain.
Application of gel permeation chromatography to high and low molecular weight polymers
Authors: Maley Lawrence E. 
Published: June 2010

AbstractGel permeation chromatography (GPC) has been applied to a wide variety of polymers within the pawl year, including those with molecular weights above 106 and those with molecular weights of 200–300. A wide variety of solvents has been used at temperatures varying from 25 to 130°C. While many polymers can be characterized with a single column, improved resolution can be obtained by using a series of columns, containing different gels with different permeability limitations, to analyze both the low end and the high end of a broad distribution curve. Plate counts of all columns must be high in order to obtain good results. The GPC technique has been extended to waxes, lubricating oil additives, and asphalts as well as to a wide variety of rubbers. Caution must be exercised in testing certain types of rubber, as gel formation within the column may lead to plugging.
Bulk fractionation of linear polyethylene
Authors: Anderson Franklin R. 
Published: June 2010

AbstractStudies of the morphology of isothermally bulk‐crystallised and annealed oriented samples of linear polyethylene have revealed the occurrence of a fractionation of molecular weights during crystallization or annealing. In isothermally bulk‐crystallized samples, the different molecular weight, species form different types of lamellae. The higher molecular weights crystallize in the form of regular folded‐chain lamellae. The lower molecular weights segregate and crystallize in the form of extended‐chain lamellae which are composed of molecules of approximately the same length. Annealing of oriented samples of linear polyethylene apparently causes the low molecular weight molecules to exude to the sample surface and migrate and recrystallize epitaxially on this surface. These molecules recrystallize in the form of needlelike lamellae which are arranged with their long axes perpendicular to the orientation axis of the sample. It is thus shown that, molecular fractional ion during crystallization or annealing affects morphology. Since the mechanical properties of linear polyethylene are directly related to morphology, fractionation also affects mechanical properties.
Elastic factors controlling sorption and transport properties of polyethylene
Authors: Michaels A. B. , Haussleix R. W. 
Published: June 2010

AbstractThe const rainment of the noncrystalline regions in polyethylene samples with various thermal and mechanical histories has been determined from measurements of the degree to which the activity of para‐xylene sorbed in the polymer is enhanced relative to its hypothetical value in the absence of crystallites. With increasing temperature, the enhancement decreases smoothly and vanishes at the polymer melting point (∼135°), while the degree of crystallinity of the polymer remains virtually constant below 100°C. This dependence of the solvent activity enhancement on temperature rather than on degree of crystallinity coupled with the observation that the behavior is reversible below 100°C. suggests that the tension on the intercrystalline tie chains is in equilibrium with the free energy driving force of crystallization. Thermodynamic analysis provides a means of calculating the fraction of the noncrystalline polymer incorporated in tie chains. This elastically effective fraction increases from 0.25 to 0.35 with the rate at which the polymer is cooled from the melt, and approaches unity for highly oriented, cold‐drawn samples. The elastically ineffective fraction of the noncrystalline polymer presumably consists of chain folds, loops, ends, and short molecules.
Polymerization on the surface of cellulose sheets: Formation of an impermeable film
Authors: Bolker Henry I. 
Published: June 2010

AbstractPolymerization by interfacial polycondensation was explored as a means of preparing materials of superior printability in the form of paper sandwiched between 2 sheets of polymer film and intimately attached to them. Reaction systems forming polyesters, polyurethanes, and polyureas were found to be unsatisfactory, because either the reactions weretooslow, or the polymers were weakand tacky. Nine combinations of diamines and diacid chlorides yielded promising polyamide films and were tested at various levels of concentration in a specially designed apparatus. Since papers containing either size or residual lignin were unsuitable for this coating system, Whatman No. 4 filter paper, representing a pure cellulose paper, was used as the substrate. As measured by air, water, and oil resistance, the best coated papers were from poly(1,6‐hexanediamine sebacamide), poly(1,6‐hexanediamine azelamide), poly(1,4‐bisaminomethylcyclohexane sebacamide), and poly(m‐xylylenediamine sebacamide). Some qualitative correlations were found between the physical properties of coated papers and the concentrations of the reactants, but the results were too variable to permit formal statistical analysis. Electron micrographs indicated that the strongest combinations were obtained when the polymer conformed closely to the fibers at the surface of the paper.
Studies on alcohol‐modified transition metal polymerization catalysts. II. Interaction of TiCl4 with cellulose and model compounds
Authors: Hidkr S. , Marchessault R. H. 
Published: June 2010

AbstractExperiments have been performed to obtain evidence concerning the chemical and physical reactions which may be expected to occur when TiCl4 is sorbed onto cellulose from nonswelling solvents. For model compounds such as 1,2‐butanediol, cis‐ and trans‐1,2‐cyclohexanediol, one ionic bond per TiCl4 was the general rule. The presence of multiple electron donating groups in the diols leads to chelation and/or polymer formation, so that insoluble reaction products were obtained. Analysis of the reaction products permitted the assignment of characteristic formulae, which accounted for variations in composition and physical properties of the reactants as a function of diol: TiCl4 ratio. The foregoing studies have provided a base for interpreting, respectively, the homogeneous and heterogeneous reactions between ethyl cellulose (DS = 2.5) and cellulose fibers with TiCl4. It appears that all the oxygens of cellulosics (not just the hydroxyls) can take part in the completing, which otherwise is similar to the diol reaction. Drying history has an important effect on the titanium content of the cellulose after reaction with TiCl4.