bluuebunny/crossref_metadata_2025_split huggingface dataset:
Kinetic model for noncatalytic supercritical water gasification of cellulose and lignin
Authors: Resende Fernando L. P. , Savage Phillip E. 
Published: January 2010

AbstractThis article reports the first kinetics model for Supercritical Water Gasification (SCWG) that describes the formation and interconversion of individual gaseous species. The model comprises 11 reactions, and it uses a lumping scheme to handle the large number of intermediate compounds. We determined numerical values for the rate constants in the model by fitting it to experimental data previously reported for SCWG of cellulose and lignin. We validated the model by showing that it accurately predicts gas yields at biomass loadings and water densities not used in the parameter estimation. Sensitivity analysis and reaction rate analysis indicate that steam‐reforming and water–gas shift are the main sources of H2 in SCWG, and intermediate species are the main sources of CO, CO2, and CH4. © 2010 American Institute of Chemical Engineers AIChE J, 2010
X chromosome inactivation does not define the development of premature ovarian failure in fragile X premutation carriers
Authors: Spath Marian A. , Nillesen Willy N. , Smits Arie P.T. , Feuth Ton B. , Braat Didi D.M. , van Kessel Ad Geurts , Yntema Helger G. 
Published: January 2010

AbstractSince only 20% of female fragile X premutation carriers develop premature ovarian failure (POF, i.e., amenorrhea before age of 40 years), and since X chromosome inactivation (XCI) determines the phenotypic severity of full mutation women, we reasoned that the development of POF in fragile X premutation carriers could be due to skewed XCI (XCI ratio >80:20). To determine inactivation ratios and activities of the premutations, inactivation patterns were assessed in peripheral blood samples from 101 fragile X premutation carriers (mean age 47.1 years, range 12–72) through analysis of the AR and FMR1 loci, respectively. In addition, AR inactivation patterns were assessed in peripheral blood samples from 25 women with idiopathic POF (mean age 31.7 years, range 19–48). We addressed the association between age and skewed XCI because older women are prone to XCI skewness. The median XCI ratios were 68% for premutation carriers with POF (N = 37), 67% for premutation carriers without POF (N = 64) and 61% for women with idiopathic POF (N = 25). The incidence of skewing was similar in all groups, that is, 7 of 37 (18.9%) in premutation carriers with POF, 11 of 64 (17.2%) in premutation carriers without POF, and 3 of 25 (12%) in women with idiopathic POF. There was good concordance between inactivation ratios at the two loci tested in 62 premutation carriers (intraclass correlation coefficient = 0.86; P < 0.01). No age‐specific skewing was observed. Skewed XCI and activity of the premutation are not associated with POF in fragile X premutation carriers. © 2010 Wiley‐Liss, Inc.
Fetal constraint as a potential risk factor for craniosynostosis
Authors: Sanchez‐Lara Pedro A. , Carmichael Suzan L. , Graham John M. , Lammer Edward J. , Shaw Gary M. , Ma Chen , Rasmussen Sonja A. 
Published: January 2010

AbstractNon‐syndromic craniosynostosis is multifactorial, and fetal head constraint has been hypothesized as one factor thought to play a role. Data from the National Birth Defects Prevention Study (NBDPS), a large multi‐site case–control study of birth defects, were used to evaluate associations between four selected factors related to fetal constraint and craniosynostosis: plurality (twins or higher), macrosomia (birth weight >4,000 g), post‐term gestational age (≥42 weeks), and nulliparity (no previous live births). Case infants (n = 675) had craniosynostosis documented either by radiographic evidence or by surgical intervention. Infants with a recognized or strongly suspected single‐gene conditions or chromosomal abnormalities were excluded. Control infants (n = 5,958) had no major birth defects and were randomly selected from the same population as case infants. Logistic regression was used to estimate odds ratios for the association between these four factors and craniosynostosis, while adjusting for several covariates. We found that plurality and nulliparity were associated with a twofold increased risk for metopic craniosynostosis, and macrosomia had almost twice the risk of developing coronal craniosynostosis. Contrary to our hypothesis, prematurity and low birth weight were also associated with craniosynostosis. In conclusion, these four constraint‐related factors were not found to be associated with craniosynostosis when all suture types were combined, though some types of craniosynostosis were associated with individual constraint‐related factors. © 2010 Wiley‐Liss, Inc.
Review and hypothesis: Syndromes with severe intrauterine growth restriction and very short stature—Are they related to the epigenetic mechanism(s) of fetal survival involved in the developmental origins of adult health and disease?
Authors: Hall Judith G. 
Published: January 2010

AbstractDiagnosing the specific type of severe intrauterine growth restriction (IUGR) that also has post‐birth growth restriction is often difficult. Eight relatively common syndromes are discussed identifying their unique distinguishing features, overlapping features, and those features common to all eight syndromes. Many of these signs take a few years to develop and the lifetime natural history of the disorders has not yet been completely clarified. The theory behind developmental origins of adult health and disease suggests that there are mammalian epigenetic fetal survival mechanisms that downregulate fetal growth, both in order for the fetus to survive until birth and to prepare it for a restricted extra‐uterine environment, and that these mechanisms have long lasting effects on the adult health of the individual. Silver–Russell syndrome phenotype has recently been recognized to be related to imprinting/methylation defects. Perhaps all eight syndromes, including those with single gene mutation origin, involve the mammalian mechanism(s) of fetal survival downsizing. Insights into those mechanisms should provide avenues to understanding the natural history, the heterogeneity and possible therapy not only for these eight syndromes, but for the common adult diseases with which IUGR is associated. © 2010 Wiley‐Liss, Inc.
Preparation of planar‐chiral multidonor phosphanylferrocene carboxamides and their application as ligands for palladium‐catalysed asymmetric allylic alkylation
Authors: Lamač Martin , Tauchman Jiří , Dietrich Sascha , Císařová Ivana , Lang Heinrich , Štěpnička Petr 
Published: January 2010

AbstractAmide coupling of (Sp)‐2‐(diphenylphosphanyl)ferrocene‐1‐carboxylic acid with appropriate terminal amines mediated by 1‐hydroxybenzotriazole and a carbodiimide affords multi‐donor amides terminally functionalized with planar‐chiral (Sp)‐2‐(diphenylphosphanyl)ferrocen‐1‐yl moieties in good to excellent yields. Palladium catalysts based on these ligands efficiently promote asymmetric allylic alkylation of 1,3‐diphenylallyl acetate with in situ generated dimethyl malonate anion to give the C‐alkylated product with ees up to 93% at room temperature. Copyright © 2010 John Wiley & Sons, Ltd.
In‐vitro antimicrobial, thermal and spectral studies of mixed ligand Cu(II) heterochelates of clioquinol and coumarin derivatives
Authors: Kharadi G. J. , Patel K. D. 
Published: January 2010

AbstractThe mixed‐ligand heterochelates of Cu(II) with 5‐chloro‐7‐iodo‐8‐hydroxyquinoline (clioquinol) and various uninegative bidentate ligands were prepared. The structure of mixed‐ligand heterochelates was investigated using spectral, physicochemical, elemental analysis and thermal studies. The FAB‐mass spectrum of [Cu(A2)(CQ)(H2O)2].2H2O has been carried out. Magnetic moment and reflectance spectral studies reveal that an octahedral geometry has been assigned to all the prepared heterochelates. The kinetic parameters such as order of reaction (n), the energy of activation (Ea), the pre‐exponential factor (A), the activation entropy (ΔS#), the activation enthalpy (ΔH#) and the free energy of activation (ΔG#) have been reported. The ligands, metal salts, heterochelates, control and standard drug were tested for their in‐vitro antibacterial activity against Escherichia coli, Pseudomonas aeruginosa, Serratia marcescens and Bacillus substilis. The metal complexes exhibit good activity against bacterial strains compared with parental compounds, and moderate compared with the standard drug (clioquinol). Copyright © 2010 John Wiley & Sons, Ltd.
Some considerations in the thyristors' reactive effects on the power supply
Authors: Jakubowicz Andrew 
Published: January 2010

AbstractSilicon Controlled Rectifier (SCR) drives have become a standard technique for transit systems. Their utilization meets the most demanding specifications and results in an effective decrease in power consumption which translates in decreased costs for energy. The regenerative DC power may be inverted to 3‐phase AC power and returned to the line as usable power. However, regenerative capability is at a cost penalty.
Liver resection of colorectal metastases in elderly patients
Authors: Adam R , Frilling A , Elias D , Laurent C , Ramos E , Capussotti L , Poston G J , Wicherts D A , de Haas R J 
Published: January 2010

AbstractBackgroundThis study evaluated the outcome of liver surgery for colorectal metastases (CLM) in patients over 70 years old in a large international multicentre cohort.MethodsAmong 7764 patients who had resection of CLM, 999 (12·9 per cent) were aged 70–75 years, 468 (6·0 per cent) were aged 75–80 years and 157 (2·0 per cent) were at least 80 years old. Elderly patients were compared with the younger population.ResultsMultinodular and bilateral metastases were less common in elderly than in younger patients (P &lt; 0·001). Preoperative chemotherapy was used less frequently and more limited surgery was performed (P &lt; 0·001). Sixty-day postoperative mortality and morbidity rates were 3·8 and 32·3 per cent respectively, compared with 1·6 and 28·7 per cent in younger patients (both P &lt; 0·001). Three-year overall survival was 57·1 per cent in elderly and 60·2 per cent in younger patients (P &lt; 0·001), and was similar among patients aged 70–75, 75–80 or at least 80 years (57·8, 55·3 and 54·1 per cent respectively; P = 0·160). Independent predictors of survival were more than three metastases, bilateral metastases, concomitant extrahepatic disease and no postoperative chemotherapy.ConclusionLiver resection for CLM in elderly patients can achieve a reasonable 3-year survival rate, with an acceptable morbidity rate. There should be no upper age limit but risk factors may help predict potential benefit.
Researching the reintegration of formerly abducted children in northern Uganda through action research: Experiences and reflections
Authors: Angucia Margaret , Zeelen Jacques , de Jong Gideon 
Published: January 2010

AbstractThis paper presents experiences and reflections on the use of a participatory research methodology under the difficult conditions of a war situation in northern Uganda. We draw from two complimentary approaches in action research to explain our methodology while doing research on the reintegration of formerly abducted children. First, the experience oriented approach, which emphasizes the need to articulate experience as a basis for learning and knowledge. Second, the exemplary participatory approach which highlights the importance of enhancing empowerment and the need to find solutions for social problems. We find these two approaches useful for doing action research in a conflict area because of their emphasis on experience and empowerment respectively. In our research, experience is important because of the children's encounter with the Lord's Resistance Army (LRA) rebels that both needs to be understood and justifies reintegration. On the otherhand, empowerment is important for our assumption that the children's experience and encounter with the LRA has disempowering effects on them. We demonstrate the use of the approaches in our research by enhancing participation, balancing power relations and being aware of ethical issues while at the same time attempting to make the research valid inspite of the challenges. Copyright © 2010 John Wiley & Sons, Ltd.
A MAS NMR Study of the Bacterial ABC Transporter ArtMP
Authors: Lange Vivien , Becker‐Baldus Johanna , Kunert Britta , van Rossum Barth‐Jan , Casagrande Fabio , Engel Andreas , Roske Yvette , Scheffel Frank M. , Schneider Erwin , Oschkinat Hartmut 
Published: January 2010

AbstractATP‐binding cassette (ABC) transport systems facilitate the translocation of substances, like amino acids, across cell membranes energised by ATP hydrolysis. This work describes first structural studies on the ABC transporter ArtMP from Geobacillus stearothermophilus in native lipid environment by magic‐angle spinning NMR spectroscopy. The 2D crystals of ArtMP and 3D crystals of isolated ArtP were prepared in different nucleotide‐bound or ‐unbound states. From selectively 13C,15N‐labelled ArtP, several sequence‐specific assignments were obtained, most of which could be transferred to spectra of ArtMP. Residues Tyr133 and Pro134 protrude directly into the ATP‐binding pocket at the interface of the ArtP subunits, and hence, are sensitive monitors for structural changes during nucleotide binding and hydrolysis. Distinct sets of NMR shifts were obtained for ArtP with different phosphorylation states of the ligand. Indications were found for an asymmetric or inhomogeneous state of the ArtP dimer bound with triphosphorylated nucleotides. With this investigation, a model system was established for screening all functional states occurring in one ABC transporter in native lipid environment.
Predictors for permanent pacing after transcatheter aortic valve implantation
Authors: Haworth Peter , Behan Miles , Khawaja Muhammed , Hutchinson Nevil , de Belder Adam , Trivedi Uday , Laborde Jean Claude , Hildick‐Smith David 
Published: January 2010

AbstractBackground: Transcatheter aortic valve implantation (TAVI) is a new treatment strategy for patients with symptomatic aortic stenosis who are high risk for traditional surgical aortic valve replacement. The incidence of conduction system abnormalities after the procedure is significant. We examine our experience with CoreValve TAVI focusing on electrocardiographic changes found pre‐, peri‐, and postintervention. Methods: During 2007–08 we undertook 33 cases utilizing the CoreValve revalving system (CoreValve, Paris, France). Assessment of ECGs, with particular reference to the PR and QRS duration, was made daily during each patient's hospital stay. Results: Patients were aged 81.7 ± 6.7 years and the majority were male (57%). Baseline cardiac rhythm was sinus (n = 28, 80%); atrial fibrillation (n = 6, 18%) or ventricular paced (n = 1, 3%). Following CoreValve implantation, prolongation of both the PR interval and QRS duration was seen. Preprocedural PR interval was 193.5 ± 38.7 ms and QRS interval preprocedure was 115.3 ± 24.8 ms. PR interval increased after the procedure by 23.5 ± 23.9 ms and peaked at day 4 with a mean increase of 66.1 ± 72.7 ms. QRS duration increased by a mean of 30.6 ± 26.1 ms postprocedure and remained stable thereafter during the remaining hospital stay. The need for PPM insertion was partially predicted by pre‐procedural QRS morphology: patients with pre‐existing right bundle branch block had an 83% chance of requiring a permanent pacemaker (P < 0.01 OR 28 95%CI 2.4–326.7); those with LBBB had a 33% chance of requiring a pacemaker (P = ns OR 2.3 95%CI 0.2–34.9). Patients undergoing the procedure later in our experience showed a decreased incidence of pacing (P = 0.046 OR 0.36 95% CI 0.07–1.82). Pre‐procedural annulus measurements also predicted the requirement for pacing with larger annulus sizes more likely to require a pacemaker (P = 0.044 OR 3.3 95% CI 0.63–17.6). The requirement for pacing was not predicted by age, baseline PR interval or gender. Requirement for pacing overall was 32% with an additional 13% having had a pacemaker inserted prior to the TAVI. Conclusion: CoreValve insertion was associated with an increase in PR interval and QRS duration. PR interval continued to rise during admission, peaking on Day 4 post procedure, making a prolonged period of monitoring highly desirable. There was a significant requirement for permanent pacing, which was predicted by pre‐procedural QRS morphology, annulus measurement, and the learning curve. © 2010 Wiley‐Liss, Inc.
Hand ischemia resulting from a transradial intervention: Successful management with radial artery angioplasty
Authors: Rhyne Diana , Mann Tift 
Published: January 2010

AbstractWe describe a case of hand ischemia resulting from transradial catheterization. This was successfully treated with angioplasty of the radial artery occlusion, but stresses the importance of a preprocedure evaluation of the dual blood supply to the hand before transradial access. © 2010 Wiley‐Liss, Inc.
Sugar‐Decorated Sugar Vesicles: Lectin–Carbohydrate Recognition at the Surface of Cyclodextrin Vesicles
Authors: Voskuhl Jens , Stuart Marc C. A. , Ravoo Bart Jan 
Published: January 2010

AbstractAn artificial glycocalix self‐assembles when unilamellar bilayer vesicles of amphiphilic β‐cyclodextrins are decorated with maltose and lactose by host–guest interactions. To this end, maltose and lactose were conjugated with adamantane through a tetra(ethyleneglycol) spacer. Both carbohydrate–adamantane conjugates strongly bind to β‐cyclodextrin (Ka≈4×104 M−1). The maltose‐decorated vesicles readily agglutinate (aggregate) in the presence of the lectin concanavalin A, whereas the lactose‐decorated vesicles agglutinate in the presence of peanut agglutinin. The orthogonal multivalent interaction in the ternary system of host vesicles, guest carbohydrates, and lectins was investigated by using isothermal titration calorimetry, dynamic light scattering, UV/Vis spectroscopy, and cryogenic transmission electron microscopy. It was shown that agglutination is reversible, and the noncovalent interaction can be suppressed and eliminated by the addition of competitive inhibitors, such as D‐glucose or β‐cyclodextrin. Also, it was shown that agglutination depends on the surface coverage of carbohydrates on the vesicles.
ChemInform Abstract: AunHgm Clusters: Mercury Aurides, Gold Amalgams, or van der Waals Aggregates?
Authors: Zaleski‐Ejgierd Patryk , Pyykkoe Pekka 
Published: January 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 Unusual Solid‐State Structure of Mercury Oxide: Relativistic Density Functional Calculations for the Group 12 Oxides ZnO, CdO, and HgO.
Authors: Biering Susan , Hermann Andreas , Furthmueller Juergen , Schwerdtfeger P. 
Published: January 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: First‐Principles Study for Vacancy‐Induced Magnetism in Nonmagnetic Ferroelectric BaTiO3.
Authors: Cao D. , Cai M. Q. , Zheng Yue , Hu W. Y. 
Published: January 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: Syntheses, Crystal Structures, and Thermal Analyses of Solvent‐Free Ca(AlD4)2 and CaAlD5.
Authors: Sato T. , Soerby M. H. , Ikeda K. , Sato S. , Hauback B. C. , Orimo S. 
Published: January 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: Dimeric Nickel(II) Containing Tungstogermanate [{β‐GeNi2W10O36(OH)2 (H2O)}2]12‐.
Authors: Nsouli Nadeen H. , Prinz Manuel , Damnik Niklas , Neumann Manfred , Talik Ewa , Kortz Ulrich 
Published: January 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: Low‐Temperature Synthesis and Characterization of the Single Chalcopyrite Phase CuInS2 Compound by Vacuum Sintering Method.
Authors: Wang Zhendong , Mo Xiaoliang , Li Juan , Sun Dalin , Chen Guorong 
Published: January 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: Organic Polymer Composites as Robust, Non‐Covalent Supports of Metal Salts.
Authors: Ng Yeap Hung , Wang Mian , Han Hong , Chai Christina L. L. 
Published: January 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: Intramolecular Cycloaddition of N‐Phthalimidoaziridines to Double and Triple Carbon—Carbon Bonds.
Authors: Pankova Alena S. , Voronin Vladimir V. , Kuznetsov Mikhail A. 
Published: January 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: Cationic‐Oxazaborolidine‐Catalyzed Enantioselective Diels—Alder Reaction of α,β‐Unsaturated Acetylenic Ketones.
Authors: Payette Joshua N. , Yamamoto Hisashi 
Published: January 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: Synthesis of Fluorine Containing Glycolurils and Oxazolines from Oxides of Internal Perfluoroolefins.
Authors: Saloutina Lyudmila V. , Zapevalov Aleksandr Ya. , Saloutin Victor I. , Slepukhin Pavel A. , Kodess Mikhail I. , Chupakhin Oleg N. 
Published: January 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.