bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: Aldehyde C—H Activation with Late Transition Metal Organometallic Compounds: Formation and Reactivity of Acyl Hydrido Complexes
Authors: Garralda Maria A. 
Published: August 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Aeruginosin Analogues and Other Compounds with Rigid Bicyclic Structure as Potential Antithrombotic Agents
Authors: Wang Guijun , Goyal Navneet 
Published: August 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Catalytic Hydrogenation of Alkyne and Alkadiene Impurities in Alkenes. Practical and Theoretical Aspects
Authors: Nikolaev S. A. , Zanaveskin L. N. , Smirnov V. V. , Averyanov V. A. , Zanaveskin K. L. 
Published: August 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Total Synthesis of the Securinega Alkaloids
Authors: Weinreb Steven M. 
Published: August 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Nonsteroidal Selective Androgen Receptor Modulators (SARMs): Dissociating the Anabolic and Androgenic Activities of the Androgen Receptor for Therapeutic Benefit
Authors: Mohler Michael L. , Bohl Casey E. , Jones Amanda , Coss Christopher C. , Narayanan Ramesh , He Yali , Hwang Dong Jin , Dalton James T. , Miller Duane D. 
Published: August 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: The Ins and Outs of Proton Complexation
Authors: Chambron Jean‐Claude , Meyer Michel 
Published: August 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Engineering Discrete Stacks of Aromatic Molecules
Authors: Klosterman Jeremy K. , Yamauchi Yoshihiro , Fujita Makoto 
Published: August 2009

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Bewertung von Zustandsgleichungen für Erdgase
Authors: Jerinić D. , Friedel L. , Schmidt J. 
Published: August 2009

AbstractZehn Zustandsgleichungen zur Vorausberechnung von Zustandsgrößen (z. B. Kondensatgehalte, Realgasfaktoren) von Erdgasen wurden hinsichtlich ihrer Wiedergabegenauigkeiten bewertet. Hierzu sind die Gleichungen zuerst anhand von Reinstoffdaten typischer Erdgaskomponenten und binärer Gas/Flüssigkeits‐Phasengleichgewichte validiert worden. Die Gemischeigenschaften wurden unter Verwendung der quadratischen Mischungsregel und binärer Wechselwirkungsparameter bestimmt. Mit den kubischen Zustandsgleichungen und der PCSAFT Gleichung werden nahezu alle Zustandsgrößen am verlässlichsten wiedergegeben. Die mittlere logarithmische Streuung liegt im Fall des Dampfdruckes, der Taudichte sowie der Siededichte bei etwa 4 % und bei der Tau‐ und Siedelinie des Gas/Flüssigkeits‐Phasengleichgewichtes bei 3 % bzw. 9 %. Mit steigender Nichtidealität der binären Systeme wurde auch eine Verschlechterung der Wiedergabegenauigkeit der Zustandsgleichungen festgestellt. Die Gegenüberstellung gemessener und mit den Zustandsgleichungen vorausberechneter Erdgas‐Kondensatgehalte verdeutlicht, dass im nahekritischen Gebiet der Erdgase keine zutreffenden Ergebnisse erzielt werden. Die mittlere logarithmische Streuung der Peng‐Robinson‐Zustandsgleichung beträgt im Fall der Nachrechnung des Kondensatgehaltes 47 % und mit der PCSAFT‐Gleichung lediglich 116 %. Bei der Vorausberechnung von Realgasfaktoren eines russischen Erdgases wurde mit allen untersuchten Zustandsgleichungen eine qualitativ und quantitativ zutreffende Wiedergabegenauigkeit erzielt. Die GERG‐2004‐Referenzzustandsgleichung eignet sich dabei am besten zur Berechnung von Realgasfaktoren, wobei auch mit der Peng‐Robinson‐ sowie der PCSAFT‐Zustandsgleichung eine gute Wiedergabegenauigkeit erzielt werden konnte. Zur Berechnung der Kondensatgehalte und Realgasfaktoren von Erdgasen eignet sich am besten die Peng‐Robinson‐Zustandsgleichung, da mit der PCSAFT‐ oder der GERG‐2004‐Gleichung die Erdgaskondensation nur unzutreffend bzw. erst gar nicht berechnet werden kann. Die Zustandsgleichungen sollten jedoch zur Berechnung der Kondensation im Betriebsbereich von Ferngasleitungen noch verbessert werden.
Oxidation von o‐Xylol zur Herstellung von Phthalsäureanhydrid Teil 1: Prozesssimulation der heterogen katalysierten Gasphasenoxidation
Authors: Fiebig B. , Kuchling T. 
Published: August 2009

AbstractDie Gasphasenoxidation von o‐Xylol zu Phthalsäureanhydrid (PSA) in einem Rohrbündelreaktor wurde mit Hilfe eines quasihomogenen, 2‐dimensionalen, polytropen Modells simuliert. Für verschiedene Betriebsbedingungen wurden die Temperatur‐ und Konzentrationsfelder in den Reaktionsrohren berechnet. Dazu wurde der Reaktionsmechanismus nach Anastasov mit dem entsprechenden kinetischen Modell zu Grunde gelegt. Ziel der durchgeführten Berechnungen war es, Möglichkeiten zur Beeinflussung der Temperaturprofile und in Folge dessen zur Verbesserung der Selektivität durch eine veränderte Prozessführung aufzuzeigen.
Formation and Structure of an Anionic Ruthenaborane Compound: [Et4N][(PPh3)2ClRuB12H12]
Authors: NIE Yong , CHEN Haiyan , MIAO Jinling , CHEN Hongwei , WANG Daqi , DOU Jianmin , SUN Guoxin 
Published: August 2009

AbstractThe title compound, [Et4N][(PPh3)2ClRuB12H12], was unexpectedly isolated from the reaction of RuCl2(PPh3)3 with closo‐B10H102− in ethanol as a red air‐stable solid, and characterized by IR and a single crystal X‐ray diffraction analysis. Its formation results from the reaction of RuCl2(PPh3)3 and B12H122−, which was present as a byproduct in the preparation of B10H102−. It may be formally regarded as either a ruthenium(II) complex of closo‐B12H122− via three B‐H‐Ru three‐center two‐electron bonds, or as a 13‐vertex pileo 2n‐electron (n is the number of vertices) ruthenaborane cluster with a capped closo polyhedral skelecton. This is the first anionic and structurally characterized metal complex having a {RuB12H12} moiety.
Xylene as a New Polymerizable Additive for Overcharge Protection of Lithium Ion Batteries
Authors: ZHANG Qianyu , QIU Chenchen , FU Yanbao , MA Xiaohua 
Published: August 2009

AbstractThe electrochemical properties and overcharge protection mechanism of xylene as a new polymerizable electrolyte additive for overcharge protection of lithium ion batteries were studied by cyclic voltammetry tests, charge‐ discharge performance and battery power capacity measurements. It was found that when the battery was overcharged, xylene could electrochemically polymerize at the overcharge potential of 4.3–4.7 V (vs. Li/Li+) to form a thin polymer film on the surface of the cathode, thus preventing voltage runaway. On the other hand, the use of xylene as an overcharge protection electrolyte additive did not influence the normal performance of lithium ion batteries.
Solid State Oxidative Aromatization of Hantzsch 1,4‐Dihydropyridines to Pyridines Using Iodobenzene Diacetate or Hydroxy(tosyloxy)iodobenzene
Authors: KUMAR Parvin 
Published: August 2009

AbstractAn easy, safe, solvent‐free and effective method for oxidative aromatization of Hantzsch 1,4‐dihydropyridines catalyzed by hypervalent iodine (IBD and HTIB) to corresponding pyridine derivatives in high yields within short span of time. All reactions were carried out just by grinding the two reactants.
Fading Spectrophotometric Method for the Determination of Polyvinylpyrrolidone with Eosin Y
Authors: YU Lihong , LIU Zhongfang , LIU Shaopu , HU Xiaoli , LIU Linfeng 
Published: August 2009

Abstract In weak acid medium, eosin Y (EY) has a strong absorption band in the visible light region, and the maximum absorption wavelength (λmax) is at 517 nm. There is no light absorption for polyvinylpyrrolidone (PVP) in 250–700 nm. When EY was reacted with PVP to form a binding product, a fading reaction of EY appeared and the maximum fading wavelength was still located at 517 nm. At the same time, a smaller absorption peak was observed at 545 nm. The extent of the fading (ΔA) is directly proportional to the concentration of PVP in the range of 0.40–3.20 mg· L−1. The fading reaction has high sensitivity. The molar absorptivity (ε) is 6.4×106 L·mol−1·cm−1 and the detection limit for PVP is 0.12 mg·L−1. The influencing factors for the reaction have been studied, and the results show that the selectivity is good. Based on this fact, a new fading spectrophotometric method for the determination of PVP with EY has been developed, which is simple and rapid, and it can be applied to the quantitative determination of PVP in beer samples.
1‐Butyl‐3‐methylimidazolium Hydrogen Sulfate [bmim]HSO4: An Efficient Reusable Acidic Ionic Liquid for the Formylation of Alcohols
Authors: NIKNAM Khodabakhsh , ZOLFIGOL Mohammad Ali , SABERI Dariush , KHONBAZI Mahdi 
Published: August 2009

Abstract1‐Butyl‐3‐methylimidazolium hydrogen sulfate [bmim]HSO4 as an acidic ionic liquid was prepared and used as a catalyst for the formylation of alcohols with ethyl formate at room temperature with good to excellent yields. A good selectivity was observed for the formylation of primary alcohols in the presence of tertiary alcohols.
Aftertreatment of Conventional Direct Dyeings of Cotton with a Bis‐reactive Cationic Fixing Agent
Authors: SHARIF Saima , SAEED Ahmad , MUHAMMAD Naeem Khan , MUHAMMAD Fauz‐ul‐Azeem 
Published: August 2009

AbstractA bis‐reactive cationic fixing agent, ethylenebis[N‐(2,3‐epoxypropyl)‐N,N‐dimethylammonium chloride] has been used as an aftertreatment reagent to improve the wash fastness of direct dyes on cotton. The effects of different pH conditions and concentrations on the effectiveness of this cationic fixing agent have been investigated. The results showed that aftertreatment at pH 11 produced dyeings with higher colour strength and better wash fastness than that at pH 7. In addition, the cationic agent at a low concentration was found to be more effective under both neutral and alkaline conditions.
Synthesis and Characterization of α‐Bromo Chalcone Derivatives
Authors: BUDAK Yakup , CEYLAN Mustafa 
Published: August 2009

Abstractα‐Bromo chalcones containing 2‐thiene ring were prepared in good yields by the condensation of 1‐(thien‐3‐yl)ethanone with aromatic aldehydes, followed by bromination with bromine and selective dehydrobromination with triethyl amine at room temperature.
Highly Efficient and Versatile Synthesis of Some Important Precursors from 1,6‐Anhydrous‐β‐D‐glucopyranose as a Green Starting Material
Authors: WEI Guohua , CAI Chao , DU Yuguo 
Published: August 2009

AbstractSome important precursors (1,6‐anhydrous‐2‐deoxy‐2‐azido‐β‐D‐glucopyranose (3), 1,6‐anhydrous‐2‐deoxy‐2‐ azido‐3,4‐di‐O‐benzyl‐β‐D‐mannopyranose (5), 1,6:2,3‐dianhydrous‐β‐D‐glucopyranose (6), 1,6‐anhydrous‐3‐deoxy‐3‐azido‐β‐D‐glucopyranose (10) and 1,6‐anhydrous‐2,4‐di‐O‐benzoyl‐β‐D‐glucopyranose (11)) for complex oligosaccharide synthesis were readily prepared from a green starting material 1,6‐anhydrous‐β‐D‐glucopyranose in one or two steps with moderate to high yields. These improved methods established herein will greatly facilitate the assembly of some complex oligosaccharides for the biological study.
Electrical Properties of Polypyrrole Ultra Thin Films
Authors: CAI Xuediao , JAEHNE Evelin , ADLER Hans‐Juergen , GUO Wenge , WANG Geng 
Published: August 2009

Abstractω‐(Pyrrol‐1‐ylalkyl)dimethylchlorosilanes with different chain lengths were adsorbed on silicon oxide surface, subsequently, the polypyrrole film was deposited on this modified substrate. The chemical deposition of polypyrrole on the modified surface was investigated by SEM and AFM. The thickness of deposited polypyrrole films on different chain adhesion promoter modified substrates has no big difference except that of the short chain length. The electric properties were investigated by current‐potential characterization. The results show that the value of the electrical current does not monotonically depend on the length of the spacer of the adhesive monolayer. The electric property shows that the charge carrier mobility is 1.4×10−4 cm2·V−1·s−1.
Systolic Blood Pressure and Subjective Well‐Being in Patients with Coronary Artery Disease
Authors: Gong Yan , Handberg Eileen M. , Gerhard Tobias , Cooper‐DeHoff Rhonda M. , Ried L. Douglas , Johnson Julie A. , Pepine Carl J. 
Published: August 2009

AbstractBackgroundLimited information exists regarding the association between subjective well‐being (SWB) and systolic blood pressure (SBP) among hypertensive patients with coronary artery disease (CAD).HypothesisWe tested the hypothesis that there is an association between SBP and SWB.MethodsWe studied 22,576 hypertensive CAD patients ≥ 50 years old in the INternational VErapamil SR‐Trandolapril Study (INVEST), a randomized, blinded‐endpoint trial of antihypertensive therapy in stable CAD patients. At each study visit, patients rated their SWB in the previous 4 weeks as “excellent,” “good,” “fair,” or “poor” prior to SBP recordings. The outcome measure was SWB of “fair” or “poor.” A longitudinal analysis using generalized estimating equations was performed to assess the association between SBP and odds of reporting fair/poor SWB, controlling for baseline SWB of fair/poor and angina reported during the study.ResultsPatients with higher SBP had higher odds of reporting fair/poor SWB. Specifically, compared with patients with SBP of ≤ 120, patients with SBP 140–150 > 150 − ≤ 160 and > 160 had about 90% and 2.5 times greater odds of feeling fair/poor, respectively (adjusted odds ratio [OR]: 1.5990, 95% confidence interval [CI]: 1.81–2.00 and adjusted OR: 2.53, 95% CI: 2.41–2.66). Those who reported angina in the 4 wks prior to a protocol visit had 2.2 times greater odds of reporting fair/poor SWB (adjusted OR: 2.2, 95% CI: 2.13–2.27). Female gender, black race, history of smoking, diabetes, myocardial infarction, stroke, and cancer also increased the odds of reporting fair/poor SWB.ConclusionsAmong hypertensive CAD patients, higher on‐treatment SBP is associated with greater odds of fair/poor SWB during follow‐up. Copyright © 2009 Wiley Periodicals, Inc.
Molecular Fingerprint Recombination: Generating Hybrid Fingerprints for Similarity Searching from Different Fingerprint Types
Authors: Nisius Britta , Bajorath Jürgen 
Published: August 2009

AbstractMolecular fingerprints have a long history in computational medicinal chemistry and continue to be popular tools for similarity searching. Over the years, a variety of fingerprint types have been introduced. We report an approach to identify preferred bit subsets in fingerprints of different design and “recombine” these bit segments into “hybrid fingerprints”. These compound class‐directed fingerprint representations are found to increase the similarity search performance of their parental fingerprints, which can be rationalized by the often complementary nature of distinct fingerprint features.
Predictors of malignancy in thyroid fine‐needle aspirates “cyst fluid only” cases
Authors: Jaragh Mohammad , Carydis V. Bessie , MacMillan Christina , Freeman Jeremy , Colgan Terence J. 
Published: August 2009

AbstractBACKGROUND:A recent consensus conference on thyroid fine‐needle aspiration (FNA) cytology concluded that specimens with abundant histiocytes and few or no follicular cells should be interpreted as “cyst fluid only,” under the category of “nondiagnostic.” The purpose of the current study was to identify any cytomorphologic characteristics in this type of specimen that are predictive of an underlying malignancy.METHODS:Thyroid FNA cases with a report of cyst fluid only and a follow‐up thyroidectomy specimen were identified during a 3‐year period. A blinded retrospective review of 6 morphologic features in the thyroid FNA specimens was conducted. These review findings were then correlated with the histopathologic diagnosis (benign or malignant).RESULTS:Of the 76 cyst fluid only cases with subsequent thyroidectomy, 10 cases had an ipsilateral diagnosis of papillary carcinoma measuring ≥1.0 cm. There was no association found between the number or amount of acute inflammatory cells, blood, colloid, macrophages, and pigmented macrophages and the histologic outcome. In only 4 of the 10 cases with a malignant outcome was the specimen assessed as being truly inadequate on retrospective review, and in 1 of these cases, the cytology was suggestive of malignancy.CONCLUSIONS:The only cytomorphologic characteristic found to be predictive of subsequent malignancy in cyst fluid only cases was the presence of follicular epithelium with atypical or suspicious features. Therefore, cases containing atypical epithelial cells should not be categorized as nondiagnostic or cyst fluid only, but rather diagnosed as atypical or suspicious. Cancer (Cancer Cytopathol) 2009. © 2009 American Cancer Society.
Improvement in the routine screening performance of cytotechnologists over time
Authors: Brimo Fadi , Renshaw Andrew A. , Deschenes Majorie , Charbonneau Michele , Auger Manon 
Published: August 2009

AbstractBACKGROUND:Documenting the performance of gynecologic screening in actual practice settings is difficult to achieve. In the current study, the screening performance of 11 individual cytotechnologists as well as that of the overall laboratory over 2 consecutive time periods was examined using the rapid prescreening (RPS) method.METHODS:RPS was performed by all cytotechnologists in a single laboratory over 2 separate 8‐month periods. The sensitivity of screening for individual and groups of cytotechnologists was examined. For purposes of comparison, cytotechnologists were divided into 2 groups: screeners with an overall routine sensitivity ≥95% and screeners with an overall sensitivity <95%.RESULTS:Atypical squamous cells (ASC) were used as a threshold, and routine screening sensitivity was found to vary from 68.3% to 96.8%. The overall sensitivity of the laboratory for RPS and routine screening was 43.6% and 88.4%, respectively. Over time, the overall laboratory sensitivity of routine screening improved from 85.3% to 91.3% (P = .01). During this same time frame, the sensitivity of the screeners with an overall sensitivity <95% improved from 79.3% to 91.2% (P < .001), whereas the sensitivity of screeners with an overall routine sensitivity ≥95% remained the same (96.1% to 96.4%; P = .6).CONCLUSIONS:In addition to improved overall performance of the laboratory by detecting and correcting errors, the results of the current study indicate that using RPS consistently over time might play a role leading to improved performance of cytotechnologists with an overall routine sensitivity <95% but not of cytotechnologists with an overall routine sensitivity ≥95%. Cancer (Cancer Cytopathol) 2009. © 2009 American Cancer Society.
Flow cytometry antibody screening using pooled red cells
Authors: Won Dong Il , Jung Ok‐Ju , Lee Yun Soo , Kim Sang Geol , Suh Jang Soo 
Published: August 2009

AbstractBackground:For red cell alloantibody screening, the column agglutination technique (CAT) is used extensively, and flow cytometry (FC) screening has recently been demonstrated to be accurate, rapid, and cost effective. We attempted to determine whether the high sensitivity of FC allows pooling of screening red cells, which is generally not an acceptable technique in CAT.Methods:For FC screening, a commercial two‐cell screening panel was utilized for the preparation of individual cells (CSi), as well as pooled cells diluted 1 in 2 (CSp), and 1 in 3 (CS1/3). Another panel was pooled from 120 randomly selected group O donors (RSp).Results:Comparing the endpoint titrations of serial dilutions, CS1/3 was found to be one dilution, on the average, less sensitive than CSi. In 33 CAT‐positive patient samples, the sensitivities of CSi and CSp did not differ significantly without polyethylene glycol (PEG) (30/33, 26/33, respectively, P = 0.125), although they did differ significantly with PEG (32/33, 25/33, respectively, P = 0.016). The percentages of reactive cells among the total cells from RSp were roughly proportional to the relevant antigen frequencies of the local donors.Conclusions:A trend toward reduced sensitivity was observed using pooled red cells, even via FC. Pooled cells from randomly selected group O donors may be employed as another method by which the characteristics of known antibodies might be assessed. © 2009 Clinical Cytometry Society
Adult BM generates CD5+ B1 cells containing abundant N‐region additions
Authors: Holodick Nichol E. , Repetny Karen , Zhong Xuemei , Rothstein Thomas L. 
Published: August 2009

AbstractThe self‐renewing capacity of B1 cells infers homeostatic regulation; however, previous work suggests the low level of N‐region addition characterizing B1 cells early in life increases with age, which implies that the B1‐cell population is not a closed system. To explore this, we evaluated N‐region addition in CD5+ B1 cells generated from adult BM. Adult BM cells were marked with GFP introduced by mouse stem cell virus transduction, and were then adoptively transferred into lethally irradiated recipients. Within 2–3 months, we found GFP‐marked CD5+ B cells in the peritoneal cavities of recipients, which we demonstrate here meet a variety of criteria for B1‐cell traits including Mac‐1 surface expression; annexin, elfin, and Pax‐5 gene expression; mitogenic responsiveness to phorbol ester; and spontaneous immunoglobulin secretion. Notably, we found by single‐cell PCR that this population of BM‐derived CD5+ B1 cells expressed immunoglobulin with abundant N‐region addition (and little VH11/VH12 skewing), unlike CD5+ B1 cells obtained from unmanipulated animals but reminiscent of B2 cells. Further, we confirmed that native CD5+ B1 cells from older mice contain more N‐region additions than native CD5+ B1 cells from younger mice. These results suggest that adult BM progenitors contribute to the peritoneal CD5+ B1‐cell pool over time.