bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: Enantiodifferentiating Hydrogenation of Prochiral Ketones over Modified Nickel
Authors: OSAWA T. , HARADA T. , TAI A. 
Published: August 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: SHS Catalysts and Supports
Authors: GRIGORYAN E. H. 
Published: August 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: Thermodynamics and Transport of Ionic and Electronic Defects in Crystalline Oxides
Authors: LANKHORST M. H. R. , BOUWMEESTER H. J. M. , VERWEIJ H. 
Published: August 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: Acid Extraction by Acid‐Base‐Coupled Extractants
Authors: EYAL A. M. 
Published: August 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.
Weine im Analyselabor
Authors: Harrer Roswitha 
Published: August 2010

AbstractWie schmeckt welcher Wein? Die besonderen Merkmale eines jeden Weins werden zum einen durch sensorische Prüfung bestimmt, zum anderen über den messbaren Gehalt einzelner Inhaltsstoffe. Welche Rückschlüsse jedoch lässt die Gesamtzusammensetzung aller Inhaltsstoffe auf den Jahrgang, die Rebsorte oder gar die Qualität zu? Verschiedene chilenische Rotweine wurden mit einem Fingerprint‐Verfahren getestet, und eine sorgfältige statistische Auswertung ergab klare Unterscheidungsmerkmale.
Grüner Tee – neue Einsichten für einen alten Wirkstoff
Authors: Bieschke Jan 
Published: August 2010

AbstractEine gesundheitsfördernde Wirkung von grünem Tee wird seit langem angenommen. Unsere Untersuchungen haben einem Hauptinhaltstoff der Teepflanze, dem Polyphenol EGCG (Epigallocatechin‐3‐gallat), einen konkreten Mechanismus zugeordnet, der in den Krankheitsprozess bei Alzheimer und Parkinson eingreift.
First‐principles calculation of electronic structure of V‐doped anatase TiO2
Authors: Long Run , English Niall J. 
Published: August 2010

AbstractThe energetic and electronic structures of V‐doped anatase TiO2 have been investigated systematically by the GGA+U approach, including replacement of Ti by V in the absence and presence of oxygen vacancies and the presence of an interstitial site. It was found that V should exist as a V4+ ion in the replacement of Ti in the anatase lattice, the electron transitions of which to the conduction band from V 3d states are responsible for the experimentally observed visible light absorption. The influence of V dopant concentration on the electronic and magnetic properties is also discussed, such as the influence of the U value in systems containing oxygen vacancies and spin flip phenomena for interstitial V‐doping.
Evaluation of the use of remotely sensed evapotranspiration estimates into AnnAGNPS pollution model
Authors: Momm Henrique , Easson Greg , Bingner Ronald , Wilcox Darlene 
Published: August 2010

AbstractThe utilization of evapotranspiration (ET) estimates, derived from satellite remote sensing, into the Annualized Agricultural Non‐Point Source (AnnAGNPS) pollution model was investigated. Modifications within AnnAGNPS were performed to allow the internal calculations of ET based on climate parameters, collected from ground‐based measurements, to be replaced by ET estimates produced with the Moderate Resolution Imaging Spectroradiometer (MODIS) sensor. Direct comparison of these sources of ET indicated that AnnAGNPS calculated ET estimates were 35% higher than the MODIS‐calculated ET estimates resulting in a 10% increase in runoff at the outlet of the Yalobusha River Watershed for 2004. Simulated monthly runoff values based on MODIS and AnnAGNPS ET estimates for the year 2004 were compared with observed values from stream gages indicating slightly better agreement from the simulation using MODIS‐derived ET. Analysis of the spatial distribution of the percent difference in runoff between AnnAGNPS‐based ET and MODIS‐based ET simulations showed higher differences at the most downstream and upstream of the watershed. These differences could be attributed to different soil properties or to the effect of distant field/weather station assigned to these locations. Although these findings should not be generalized to watersheds located in different ecosystems, the results indicate that the utilization of remotely sensed ET in hydrological modelling is feasible and that use of MODIS to estimate ET provided a more comprehensive spatial coverage than the often available through ground‐based measurements. Copyright © 2010 John Wiley & Sons, Ltd.
Chitin induces upregulation of B7‐H1 on macrophages and inhibits T‐cell proliferation
Authors: Wagner Claudia J. , Huber Silke , Wirth Stefanie , Voehringer David 
Published: August 2010

AbstractChitin is a highly abundant glycopolymer, which serves as structural component in fungi, arthropods and crustaceans but is not synthesized by vertebrates. However, vertebrates express chitinases and chitinase‐like proteins, some of which are induced by infection with helminths suggesting that chitinous structures may be targets of the immune system. The chitin‐induced modulations of the innate and adaptive immune responses are not well understood. Here, we demonstrate that intranasal administration of OVA and chitin resulted in diminished T‐cell expansion and Th2 polarization as compared with OVA administration alone. Chitin did not promote nor attenuate Th2 polarization in vitro. Chitin‐exposed macrophages inhibited proliferation of CD4+ T cells in a cell–cell contact‐dependent manner. Chitin induced upregulation of the inhibitory ligand B7‐H1 (PD‐L1) on macrophages independently of MyD88, TRIF, TLR2, TLR3, TLR4 and Stat6. Inhibition of T‐cell proliferation was largely dependent on B7‐H1, as the effect was not observed in cocultures with cells from B7‐H1‐deficient mice.
Copper(I) Trinuclear Phosphorescent Complexes with Tuneable Optical and Photophysical Properties (Eur. J. Inorg. Chem. 23/2010)
Authors: Andrés‐Tomé Inmaculada , Winscom Christopher J. , Coppo Paolo 
Published: August 2010

AbstractThe cover picture shows the emissions of the CuI coordination complexes presented in the Short Communication by P. Coppo et al. on p. 3567 ff. The energy of the emission can be tuned within the visible region by careful selection of the alkynyl ligands. In addition, the lifetime of the excited state can be increased by up to two orders of magnitude, by coordination to highly conjugated alkynyl ligands. All complexes show good quantum yields of photoluminescence in degassed solutions.
Planar Chiral Flavinium Salts – Prospective Catalysts for Enantioselective Sulfoxidation Reactions
Authors: Jurok Radek , Cibulka Radek , Dvořáková Hana , Hampl František , Hodačová Jana 
Published: August 2010

AbstractA novel planar chiral flavinium salt, 3‐benzyl‐5‐ethyl‐10‐(8‐phenylnaphthalen‐1‐yl)isoalloxazinium perchlorate (2b), which bears a phenyl cap that covers one side of the isoalloxazinium skeleton plane, has been prepared as a potential catalyst for the enantioselective H2O2 oxidation of sulfides. The rate of H2O2 oxidation of sulfides in the presence of racemic 2b is comparable to that of the reaction catalysed by 5‐ethyl‐3,10‐dimethylisoalloxazinium perchlorate, which indicates that the bulky shielding substituent does not influence the catalytic activity of the flavinium unit. The turnover frequency for the oxidation of thioanisole with hydrogen peroxide with 2b is 870 h–1. The enantiomerically pure salts (+)‐2b and (–)‐2b were prepared from the pure enantiomers (+)‐3b and (–)‐3b of 3‐benzyl‐10‐(8‐phenylnaphthalen‐1‐yl)isoalloxazine (3b) obtained by HPLC separation of racemic 3b on a chiral stationary phase. The enantiomerically pure salts (+)‐2b and (–)‐2b catalyse the H2O2 oxidation of para‐substituted thioanisoles with enantiomeric excesses of 34–44 %. The highest enantioselectivity (54 % ee) was observed in the oxidation of methyl naphthyl sulfide.
Laboratory and field studies in the use of the isotope59 fe for tracing soil particle movement
Authors: Fullen Michael A. 
Published: August 2010

AbstractRadioactive 59Fe is considered to be one of the most satisfactory isotopes for tracing soil particle movement. Laboratory techniques of labelling and their success are investigated along with the scintillation technique of radiation detection. Following the completion of a field pilot study 59Fe‐labelled soils were exposed on both vegetated and burnt heather moorland on the North York Moors to monitor relative soil movement.
Grain velocities in overland flow: A laboratory study
Authors: Govers Gerard 
Published: August 2010

AbstractIn order to gain insight into the sediment transport process as it occurs in overland flow, velocities of fine to coarse sand grains were measured on beds of varying roughness. For all grain sizes, grain velocity can be well related to the shear velocity of the flow. However, the relationship is essentially linear for coarse grains, while there is a progressive increase of grain velocity for fine grains. The latter is not only due to the changing flow characteristics with height, but also to the fact that fine grains are transported at relatively greater heights above the bed at high shear velocities. The results explain some characteristics of earlier developed empirical transporting capacity relationships.
On the temporal and spatial variance in displacement velocity of a slide in varved clays in the French ALPS
Authors: Van Genuchten Pieter M. B. 
Published: August 2010

AbstractThe distribution of slide rate in time and space in an active landslide in varved clays in the French Alps are presented. Convergent flow of the sliding mass and increase of slide rate downslope appeared from geodetic measurements. By means of a mass balance it is shown that the convergence is compensated by the increased slide rate hence the depth of the sliding mass is constant throughout the slide. In the eight years of recording, variations in the precipitation totals in the period accumulated masses forms an additional explanation.
River terrace formation, modelling, and 3‐D graphical simulation
Authors: Veldkamp A. , Vermeulen S. E. J. W. 
Published: August 2010

AbstractA model on river terrace formation is presented, written in PASCAL and run on a VAX 8600. The model calculates the influence of a fluvial system on the relief of an area with macroscopical dimensions (10kmx20kmx0.5km) over a period of 2.5 million years. Model input relies on uplift and alternations in discharge and sediment load as a function of climatic changes. The output of the model are 3‐dimensional grid drawings which visualize the impact of uplift, discharge, and sediment load on a landscape. Model formulation is based on empirical information on fluvial systems, which was incorporated in the model by means of a slightly adapted way of finite state modelling, in which decisions act as thresholds. The model is organized using two entities, ‘River’ and ‘Landscape’ with attributes that have values within a specific, realistic domain. The model produces plausible (x, y, z), and (x, y, t) plots in the light of existing geomorphological theories. The described modelling procedure shows that it is possible to simulate river terrace formation threedimensionally with the use of empirical information.
Soziologische und ökologische Untersuchungen an Moosen mecklenburgischer Ackerböden
Authors: Kühner Eugen 
Published: August 2010

AbstractVon verschiedenen Ackerstandorten Mecklenburgs wurden 437 bryosoziologische Aufnahmen ausgewertet. Dabei konnten 81 Moosarten festgestellt werden. Hieran schließen sich floristische und pflanzengeographische Untersuchungen an.Als wichtigste Vegetationseinheiten werden das Riccio‐Anthoceretum, das Pottietum truncatae und das Pottietum lanceolatae erkannt. Diese Assoziationen werden in Subassoziationen, Varianten und Subvarianten gegliedert. Ökologische Untersuchungen ergaben, daß sich die drei genannten Assoziationen in ihren Ansprüchen an den pH‐Wert, den Kalk‐ und Wassergehalt des Bodens unterscheiden. Während das Riccio‐Anthoceretum schwach saure bis saure, nasse Böden im atlantisch beeinflußten Gebiet bevorzugt, kommt das Pottietum lanceolatae auf alkalisch reagierenden, sommertrockenen Standorten Südostmecklenburgs vor. Das Pottietum truncatae, die häufigste Moosgesellschaft, besiedelt besonders die guten Ackerstandorte (schwach saure bis neutrale, gut durchfeuchtete Böden).Das Auftreten der einzelnen Arten in Abhängigkeit von einigen ökologischen Faktoren (pH‐Wert, K2O‐, P2O5‐ und Wassergehalt des Bodens) wird dargestellt und eine Einstufung in 7 soziologisch‐ökologische Artengruppen vorgenommen. Im Zusammenhang damit erfolgt eine kurze Charakterisierung der Standortsverhältnisse. In Kulturversuchen werden durch Variation des Säuregrades, des Kalium‐, Phosphor‐und Stickstoffgehaltes der Nährlösung sowie durch veränderten Wassergehalt des Substrates die Wachstumsoptima und Wachstumsgrenzen einiger Ackermoose bestimmt.Ein Vergleich der experimentellen Ergebnisse mit den ermittelten ökologischen Ansprüchen der Arten ergab, daß der Bereich des optimalen physiologischen Wachstums größer ist als der, in dem die Art im Freiland vorkommt. Am natürlichen Standort wird durch die Konkurrenz der Bereich des möglichen Wachstums (physiologischer Wachstumsbereich) eingeengt. Als Ergänzung der ökologischen Untersuchungen kann der Stickstoffgehalt der Nährlösung bzw. des Bodens als weiterer differenzierender Faktor für das Vorkommen der drei Gesellschaften gewertet werden.
The distribution pattern of free amino acids in certain Boraginaceae
Authors: Narayana L. L. , Satyavathi D. V. L. 
Published: August 2010

AbstractThe distribution pattern of free amino acids in 14 taxa belonging to seven genera representing four tribes of the family Boraginaceae has been studies by unidimensional chromatography. The Paired Affinity (PA), Group Affinity (GA) indices and Isolation Values IVi and IVn, have been calculated for the taxa and the PA values are represented in polygonal graphs. The overlapping distribution of amino acids indicates close interrelationship between the taxa of the family. The study does not lend support to HUTCHINSON's (1973) segregation of Ehretiaceae into an independent family as distinct from Boraginaceae.
Development of a suitable lexicon for sensory studies of the anise‐flavoured spirits ouzo and tsipouro
Authors: Tsachaki Maroussa , Arnaoutopoulou Archontia P. , Margomenou Lila , Roubedakis Stylianos C. , Zabetakis Ioannis 
Published: August 2010

AbstractOuzo and tsipouro belong to the group of anise‐flavoured spirits that are produced in countries around the Mediterranean Sea. Despite the high commercial value of these spirits, there has previously been no dedicated lexicon to describe their sensory properties. Six commercial samples of ouzo and three commercial samples of tsipouro, selected from different regions of Greece, were analysed using gas chromatography and sensory analysis. Their attributes (odour, taste and aftertaste) were examined in order to create a set of descriptors. Spider webs and principal components analysis (PCA) were used to create a lexicon describing the samples and demonstrating the differences between the two alcoholic beverages. Results from chemical and sensory analyses were combined using PCA and factor analysis. The ability of assessors to separate the products with real differences was confirmed using cluster analysis. A set of descriptors, suitable for these two products, was created and with its use the two products could be discriminated by sensory analysis. The descriptors used for odour were anise, mastic, sweet, alcoholic, herbal, vanilla, menthol and strong; for taste they were sweet, alcoholic, rich, spicy, artificial, aromatic, menthol and caustic; and for aftertaste they were sweet, alcoholic, artificial, spicy and bitter. These descriptors should be a useful methodological tool in future research and development (R&D), in both industry and academia, when studying alcoholic beverages. Copyright © 2010 John Wiley & Sons, Ltd.
Second‐order state‐specific multireference Møller Plesset perturbation theory: Application to energy surfaces of diimide, ethylene, butadiene, and cyclobutadiene
Authors: Mahapatra Uttam Sinha , Chattopadhyay Sudip , Chaudhuri Rajat K. 
Published: August 2010

AbstractThe complete active space spin‐free state‐specific multireference Møller‐Plesset perturbation theory (SS‐MRMPPT) based on the Rayleigh‐Schrödinger expansion has proved to be very successful in describing electronic states of model and real molecular systems with predictive accuracy. The SS‐MRMPPT method (which deals with one state while using a multiconfigurational reference wave function) is designed to avoid intruder effects along with a balanced description of both dynamic and static correlations in a size‐extensive manner, which allows us to produce accurate potential energy surfaces (PESs) with a correct shape in bond‐breaking processes. The SS‐MRMPPT method is size consistent when localized orbitals on each fragment are used. The intruder state(s) almost inevitably interfere when computing the PESs involving the breaking of genuine chemical bonds. In such situations, the traditional effective Hamiltonian formalism often goes down, so that no physically acceptable solution can be obtained. In this work, we continue our analysis of the SS‐MRMPPT method for systems and phenomena that cannot be described either with the conventional single‐reference approach or effective Hamiltonian‐based traditional MR methods. In this article, we investigate whether the encouraging results we have obtained at the SS‐MRMPPT level in the study of cis‐trans isomerization of diimide (N2H2), ethylene (C2H4), and 1,3‐butadiene (C4H6) carry over to the study of chemical reactions. The energy surfaces of the double‐bond flipping interconversion of the two equivalent ground and two lowest singlet state structures of cyclobutadiene have also been studied. All results have been discussed and assessed by comparing with other state‐of‐the‐art calculations and corresponding experimental data whenever available. © 2010 Wiley Periodicals, Inc. J Comput Chem, 2011
Benign prostatic hyperplasia: Evaluation of T1, T2, and microvascular characteristics with T1‐weighted dynamic contrast‐enhanced MRI
Authors: Kershaw Lucy E. , Hutchinson Charles E. , Buckley David L. 
Published: August 2010

AbstractPurposeTo evaluate microvascular and relaxation parameters of prostate and nearby muscle in patients with benign prostatic hyperplasia (BPH), and to examine measurement reproducibility.Materials and MethodsIn this prospective study, 13 patients with BPH were imaged twice prior to surgery. The imaging protocol included a three‐dimensional (3D) inversion‐recovery turbo field‐echo measurement of T1, a multiecho measurement of T2, and a high temporal resolution (1.5 seconds per volume) dynamic contrast‐enhanced (DCE) acquisition. The DCE data were analyzed using a distributed parameter tracer kinetics model to provide estimates of perfusion (Fb), extraction fraction (E), mean transit time (Tc), and extravascular‐extracellular volume (ve) in both the central gland (CG) and the peripheral zone (PZ) of the prostate, and in nearby muscle. Precision of these estimates was calculated using a bootstrap technique and the reproducibility was evaluated using the within‐patient coefficient of variation (wCV).ResultsThe microvascular parameters were estimated in the prostate with high precision; in particular, E, Fb, and ve had median CVs of ≤6%, ≤4 %, and ≤5%, respectively. Reproducibilities of the T1 and T2 measurements were excellent (wCV ≤ 4%), and reproducibility of the other parameters reflected values seen in previous studies.ConclusionMicrovascular and relaxation properties of BPH can be measured precisely with reproducibilities for a distributed parameter tracer kinetics model that are comparable to those for a simpler model. Measurements of T1 and T2 were highly reproducible. J. Magn. Reson. Imaging 2009;29:641–648. © 2009 Wiley‐Liss, Inc.
Automated frame‐by‐frame endocardial border detection from cardiac magnetic resonance images for quantitative assessment of left ventricular function: Validation and clinical feasibility
Authors: Corsi Cristiana , Veronesi Federico , Lamberti Claudio , Bardo Dianna M.E. , Jamison Ernest B. , Lang Roberto M. , Mor‐Avi Victor 
Published: August 2010

AbstractPurposeTo develop a technique based on image noise distribution for automated endocardial border detection from cardiac magnetic resonance (CMR) images throughout the cardiac cycle, validate it, and test its clinical utility.Materials and MethodsImages obtained in 36 patients were analyzed using custom software to obtain left ventricular (LV) volume throughout the cardiac cycle, end‐systolic and end‐diastolic LV volumes, and ejection fraction (EF). Validation against manually‐traced endocardial boundaries included intertechnique comparisons of LV volumes, slice areas, and border positions. Then, the clinical feasibility of the dynamic automated analysis of LV function was tested in 14 patients with normal LV function, 12 patients with systolic dysfunction, and 10 patients with diastolic dysfunction.ResultsAnalysis time for one cardiac cycle was <15 minutes. Intertechnique comparisons resulted in high correlation (r > 0.96), small biases (volumes: –6 mL; EF: 4.6%) and narrow limits of agreement (volumes: 17.6 mL; EF: 9.2%). We found significant intergroup differences in multiple quantitative indices of systolic and diastolic function.ConclusionFast, automated, dynamic detection of LV endocardial boundaries is feasible and allows accurate quantification of LV size and function, which is potentially clinically useful for objective assessment of systolic and diastolic dysfunction. J. Magn. Reson. Imaging 2009;29:560–568. © 2009 Wiley‐Liss, Inc.