bluuebunny/crossref_metadata_2025_split huggingface dataset:
Phase Contrast X‐Ray Tomographic Microscopy for Biological and Materials Science Applications
Authors: McDonald Samuel A. , Marone Federica , Hintermüller Christoph , Mikuljan Gordan , David Christian , Stampanoni Marco 
Published: November 2010

AbstractThe application of two approaches for high‐throughput, high‐resolution X‐ray phase contrast tomographic imaging being used at the tomographic microscopy and coherent radiology experiments (TOMCAT) beamline of the SLS is discussed and illustrated. Differential phase contrast (DPC) imaging, using a grating interferometer and a phase‐stepping technique, is integrated into the beamline environment at TOMCAT in terms of the fast acquisition and reconstruction of data and the availability to scan samples within an aqueous environment. A second phase contrast method is a modified transfer of intensity approach that can yield the 3D distribution of the decrement of the refractive index of a weakly absorbing object from a single tomographic dataset. The two methods are complementary to one another: the DPC method is characterised by a higher sensitivity and by moderate resolution with larger samples; the modified transfer of intensity approach is particularly suited for small specimens when high resolution (around 1 µm) is required. Both are being applied to investigations in the biological and materials science fields.
Benefits of X‐Ray CMT for the Modeling of C/C Composites
Authors: Coindreau Olivia , Mulat Christianne , Germain Christian , Lachaud Jean , Vignoles Gerard L. 
Published: November 2010

AbstractC/C composites have application in very demanding areas like aerospace, fusion technology, etc. and thus their optimization is crucial, both in the control of processing routes and in the prediction of their behavior in use. Intense modeling efforts have been performed in these directions. To help a direct application on actual materials, with possibly complex reinforcement architectures, X‐ray computerized micro‐tomography (CMT) is a beneficial technique, since it allows producing extremely detailed representations of these architectures. However, there is a long way from the crude X‐ray projections to the information that is directly usable in C/C composite modeling. This paper summarizes several achievements in this domain and discusses the obtained results, concerning (i) composites imaging by phase contrast CMT and holographic CMT, (ii) evaluation of effective geometrical and transfer properties in fiber arrangements and actual fiber‐reinforced composites, (iii) modeling of degradation by ablation, and (iv) modeling of processing by chemical vapor infiltration.
The Impact of Pore Size and Pore Connectivity on Single‐Phase Fluid Flow in Porous Media
Authors: Jiang Zeyun , Wu Kejian , Couples Gary D. , Ma Jingsheng 
Published: November 2010

AbstractThe analysis of the 3D microstructure of porous materials is of importance in multiple disciplines, such as reservoir engineering and environmental science. We have developed a suite of methods to characterize the geometry and topology of pore systems from 3D images of samples, allowing us to extract pore network representations for use in network flow models that predict single‐/multi‐phase fluid flow properties. Using these methods, we have investigated geometric and topological factors that have a major impact on the flow prediction. The parameters that describe the geometric and topological characteristics are directly related to the fluid flow properties of the medium. By arbitrarily and independently altering the pore sizes and the connectivity, we show that pore connectivity is the most important influence on the permeability, with the pore size also being important. The work reported here has general relevance in the prediction of properties from 3D images, because of the issue of image artifacts, since mis‐assignment of solid/pore can lead to significant changes in predicted properties, especially for coarse‐resolution images.
Residues at the Indole‐NH of LE300 Modulate Affinities and Selectivities for Dopamine Receptors
Authors: Robaa Dina , Kretschmer Robert , Siol Oliver , AbulAzm Shams ElDin , ElKhawass ElSayeda , Lehmann Jochen , Enzensperger Christoph 
Published: November 2010

AbstractTo further investigate SAR in the class of azecine‐type dopamine receptor antagonists, we synthesized a series of derivatives, substituted at the indole‐NH of the lead compound LE300 by different alkyl chains in addition to phenylpropyl, allyl, propargyl, and acetyl residues. The affinities of the target compounds for all human dopamine receptors (D1–D5) were investigated by radioligand binding assay and their functionality by a calcium assay. Both the affinities and selectivities for the dopamine receptors were found to be affected by the nature of the substituent. The N14‐methylated derivative displayed the highest affinities for all D‐receptors. In general, the affinities decreased with increasing chain length of the N‐alkyl. Different substituents, partly led to altered affinity, and selectivity profile when compared with our lead LE300.
Prognostic importance of the gross classification of hepatocellular carcinoma in living donor-related liver transplantation
Authors: Shirabe K , Aishima S , Taketomi A , Soejima Y , Uchiyama H , Kayashima H , Ninomiya M , Mano Y , Maehara Y 
Published: November 2010

Abstract

Background
The gross classification of hepatocellular carcinoma (HCC) has been reported to be a significant prognostic factor for patients with HCC undergoing partial hepatectomy. The present study investigated whether the gross classification of HCC is also a prognostic factor in living donor-related liver transplantation (LDLT).

Methods
Some 119 patients undergoing LDLT for HCC were identified retrospectively from a prospective institutional database containing information on all LDLTs carried out between 1996 and 2009. Patients were divided into three groups according to the gross classification of the largest tumour in the explanted liver: type 1 HCC, single nodular type (81 patients); type 2, single nodular type with extranodular growth (21); and type 3, contiguous multinodular type (17). Clinicopathological factors and recurrence-free survival rates were compared.

Results
Recurrence-free survival rates for the whole group were 87·7 per cent at 1 year, 83·5 per cent at 3 years and 81·0 per cent at 5 years after LDLT. Type 3 HCC was associated with large tumour size, poor histological grade, a high incidence of microvascular invasion and multiple tumours. Independent predictors of poor recurrence-free survival were preoperative serum level of des-γ-carboxy prothrombin exceeding 300 mAU/ml, microvascular invasion and type 3 HCC.

Conclusion
The gross classification of HCC was an independent predictor for recurrence of HCC in patients undergoing LDLT.
Volume analysis of outcome following restorative proctocolectomy
Authors: Burns E M , Bottle A , Aylin P , Clark S K , Tekkis P P , Darzi A , Nicholls R J , Faiz O 
Published: November 2010

Abstract

Background
This observational study aimed to determine national provision and outcome following pouch surgery (restorative proctocolectomy, RPC) and to examine the effect of institutional and surgeon caseload on outcome.

Methods
All patients undergoing primary RPC between April 1996 and March 2008 in England were identified from the administrative database Hospital Episode Statistics. Institutions and surgeons were categorized according to the total RPC caseload performed over the study interval.

Results
Some 5771 primary elective pouch procedures were undertaken at 154 National Health Service hospital trusts. Median follow-up was 65 (interquartile range (i.q.r.) 28–106) months. The 30-day in-hospital mortality rate was 0·5 per cent and the 1-year overall mortality rate 1·5 per cent. Some 30·5 per cent of trusts performed fewer than two procedures per year, and 91·4 per cent of surgical teams (456 of 499) carried out 20 or fewer RPCs over 8 years. Median surgeon volume was 4 (i.q.r. 1–9) cases. Failure occurred in 6·4 per cent of cases. Low-volume surgeons operated on more patients at the extremes of age (P &lt; 0·001) and a lower proportion with ulcerative colitis (P &lt; 0·001). Older age, increasing co-morbidity, increasing social deprivation, and both lower provider and surgeon caseload were independent predictors of longer length of stay. Older patient age and low institutional volume status were independent predictors of failure.

Conclusion
Many English institutions and surgeons carry out extremely low volumes of RPC surgery. Case selection differed significantly between high- and low-volume surgeons. Institutional volume and older age were positively associated with increased pouch failure.
ChemInform Abstract: Cyanoplatinate Halides — Synthesis, Crystal Structure Analyses and Vibrational Spectroscopy of Compounds A2[Pt(CN)4X2] (A: Rb, Cs; X: Cl, Br, I).
Authors: Muehle Claus , Nuss Juergen , Dinnebier Robert E. , Jansen Martin 
Published: November 2010

AbstractThe crystal structures of compounds (IIIa,c,e,f) are determined by single crystal XRD.
ChemInform Abstract: Synthesis of Monodispersed Wurtzite Structure CuInSe2 Nanocrystals and Their Application in High‐Performance Organic—Inorganic Hybrid Photodetectors.
Authors: Wang Jian‐Jun , Wang Yong‐Qing , Cao Fei‐Fei , Guo Yu‐Guo , Wan Li‐Jun 
Published: November 2010

AbstractHigh quality CuInSe2 nanocrystals with monodispersed size and uniform hexagonal shape are synthesized from mixtures of Cu‐oleate (obtained by reacting CuCl2 and sodium oleate dissolved in EtOH/H2O/hexane at 70 °C for 4 h), InCl3, Ph2Se2, and oleylamine (255 °C, 1.5 h).
ChemInform Abstract: Solution Route to PbSe Films with Enhanced Thermoelectric Transport Properties.
Authors: Sun Zhengliang , Liufu Shengcong , Chen Xihong , Chen Lidong 
Published: November 2010

AbstractHigh‐quality PbSe films are synthesized from solutions of Pb(NO3)2, nitrilotriacetic acid, ascorbic acid, and Na2SeSO3 (70 °C, 3 h).
ChemInform Abstract: Enhanced Figure‐of‐Merit in Se‐Doped p‐Type AgSbTe2 Thermoelectric Compound.
Authors: Du Baoli , Li Han , Xu Jingjing , Tang Xinfeng , Uher Ctirad 
Published: November 2010

AbstractAgSbSexTe2‐x samples with x ≥ 0.02 form a homogeneous single‐phase solid solution and exhibit considerably larger electrical conductivity compared with that of x = 0 and x = 0.01 samples in the temperature range of 400—700 K.
ChemInform Abstract: A Nanostructured SiAl0.2O Anode Material for Lithium Batteries.
Authors: Jeong Goojin , Kim Young‐Ugk , Krachkovskiy Sergey A. , Lee Churl Kyoung 
Published: November 2010

AbstractNanostructured SiAl0.2O is mechanochemically synthesized from mixtures of SiO and elemental Al powders and characterized by XRD, SEM, TEM, 29Si and 27Al MAS NMR spectroscopy, and electrochemical measurements.
ChemInform Abstract: Hybrid Uranium—Oxalate Fullerene Topology Cage Clusters.
Authors: Ling Jie , Wallace Christine M. , Szymanowski Jennifer E. S. , Burns Peter C. 
Published: November 2010

AbstractAs revealed by single crystal XRD compound (III) crystallizes in the monoclinic space group C2/m with Z = 2 and (V) in the orthorhombic space group Cmca with Z = 4.
ChemInform Abstract: Pb2Fe2V4O15 — A New Phase Forming in the System FeVO4—Pb2V2O7.
Authors: Blonska‐Tabero Anna 
Published: November 2010

AbstractThe new title compound is prepared by reaction between FeVO4 and Pb2V2O7 at a molar ratio of 2:1 (570 °C, 60 h).
ChemInform Abstract: Solvent‐Free Catalytic Enantioselective C—C Bond Forming Reactions with Very High Catalyst Turnover Numbers.
Authors: Pelphrey Philip , Hansen Joern , Davies Huw M. L. 
Published: November 2010

AbstractA combination of donor—acceptor‐substituted rhodium carbenoid catalysts with solvent‐free reaction conditions is used to significantly enhance the turnover numbers (TON) in Rh‐catalyzed C—C bond formation reactions.
ChemInform Abstract: Chiral Sulfoxides as Activators of Allyl Trichlorosilanes in the Stereoselective Allylation of Aldehydes.
Authors: De Sio Vincenzo , Massa Antonio , Scettri Arrigo 
Published: November 2010

AbstractChiral methyl tolyl sulfoxide is used as an efficient activator in the asymmetric allylation of various aldehydes with allyl trichlorosilanes.
ChemInform Abstract: Ru‐Catalyzed Decarbonylative Addition of Aliphatic Aldehydes to Terminal Alkynes.
Authors: Guo Xiangyu , Wang Jun , Li Chao‐Jun 
Published: November 2010

AbstractCompared to a formerly described reaction of aromatic aldehydes, the additional phosphine ligand causes a complete change of chemoselectivity to the use of aliphatic aldehydes.
ChemInform Abstract: Copper‐Catalyzed One‐Pot Synthesis of α‐Functionalized Imidates.
Authors: Husmann Ralph , Na Yun S. , Bolm Carsten , Chang Sukbok 
Published: November 2010

AbstractA four‐component, one‐pot procedure for the synthesis of α‐functionalized imidates under mild conditions from readily available alkynes, sulfonyl azides, alcohols, and nitroalkenes is described.
ChemInform Abstract: Iron‐Promoted Synthesis of Substituted 1‐Halo‐1,4‐pentadienes by Reaction of 1,3‐Diarylpropenes with Ethynylbenzenes via sp3 C—H Bond Activation.
Authors: Mo Hanjie , Bao Weiliang 
Published: November 2010

AbstractThe products can be converted into other interesting compounds such as the dienyne (V).
ChemInform Abstract: Palladium‐Catalyzed Coupling Reactions: Carbonylative Heck Reactions to Give Chalcones.
Authors: Wu Xiao‐Feng , Neumann Helfried , Beller Matthias 
Published: November 2010

AbstractThe first carbonylative Heck reactions of aryl and alkenyl triflate derivatives with carbon monoxide and aromatic olefins proceed in the presence of palladium catalysts generated in situ.
ChemInform Abstract: Catalyst‐Free Aziridination and Unexpected Homologation of Aziridines from Imines.
Authors: Branco Paula Serio , Raje Vivek Prabhakar , Dourado Jorge , Gordo Joana 
Published: November 2010

AbstractAziridination and homologation reaction of N‐sulfonylimines are easily achieved by the present new, very simple, rapid and mild procedure using diazomethane as carbene source without any catalyst.
ChemInform Abstract: A Concise Synthesis of Natural Benzofuran Neolignans and Analogues.
Authors: Duan Xin‐Fang , Shen Gang , Zhang Zhan‐Bin 
Published: November 2010

AbstractAn efficient total synthesis of naturally occurring neolignans such as (VIIa) and non‐natural analogues (VIId) and (VIII) is achieved from readily available aldehydes (I) and (II).
ChemInform Abstract: Three‐Component One‐Pot Synthesis of 3‐(2‐Furanyl)indoles from Acetylenedicarboxylate, Isocyanide, and 3‐Formylindole.
Authors: Reddy B. V. Subba , Reddy A. Mallikarjun , Somashekar D. , Yadav J. S. , Sridhar B. 
Published: November 2010

AbstractThe desired products are readily available in a single step.
ChemInform Abstract: A Three‐Step Tandem Process for the Synthesis of Bicyclic γ‐Lactams.
Authors: McGonagle Fiona I. , Brown Lindsay , Cooke Andrew , Sutherland Andrew 
Published: November 2010

AbstractAllylic trichloroacetimidates derived from the corresponding alcohols are subjected without purification to a palladium‐catalyzed Overman rearrangement, followed by ring closing metathesis and a final Kharasch cyclization to give bicyclic lactams.
ChemInform Abstract: A Green Approach in Aqueous Phase Synthesis of Isoxazolidine Derivatives from N‐Phenyl‐α‐amino Nitrone and Their Antibacterial Activities.
Authors: Chakraborty Bhaskar , Chhetri Manjit Singh , Samanta Amalesh 
Published: November 2010

AbstractThe cycloaddition reaction affords the target compounds in excellent yields.
ChemInform Abstract: Iron‐Catalyzed C—O Bond Activation for the Synthesis of Propargyl‐1,2,3‐triazoles and 1,1‐Bis‐triazoles.
Authors: Yan Wuming , Wang Qiaoyi , Chen Yunfeng , Petersen Jeffrey L. , Shi Xiaodong 
Published: November 2010

AbstractAlcohol substrates bearing aromatic and vinylic moieties afford high yields, whereas those with an aliphatic substituent at the hydroxyl site [cf.
ChemInform Abstract: Facile Synthesis of Novel Benzotriazole Derivatives and Their Antibacterial Activities.
Authors: Wan Jun , Lv Peng‐Cheng , Tian Na‐Na , Zhu Hai‐Liang 
Published: November 2010

AbstractSome of the title compounds, e.g. (IIIa)‐(IIIe) and (Va), exhibit potent antibacterial activities.
ChemInform Abstract: Synthesis of 5‐Azaindoles via a Cycloaddition Reaction Between Nitriles and Donor—Acceptor Cyclopropanes.
Authors: Moustafa Mahmoud M. Abd Rabo , Pagenkopf Brian L. 
Published: November 2010

AbstractThe new inexpensive two‐step sequence allows the preparation of pharmacologically important azaindoles.
ChemInform Abstract: 1‐Bromo‐2‐trifluoroacetylcyclobutenes as Novel Building Blocks for the Construction of Trifluoromethyl Substituted Heterocycles. Part 3. Synthesis of Trifluoromethylsubstituted Pyridines, Condensed with Cyclobutene Moieties.
Authors: Koldobskii Andrey B. , Solodova Ekaterina V. , Godovikov Ivan A. , Verteletskii Pavel V. , Kalinin Valery N. 
Published: November 2010

AbstractThis general method allows the construction of trifluoromethylated pyridines which are fused with strained cyclobutene rings.
ChemInform Abstract: [4 + 2]‐Cycloaddition of Alkyl Vinyl Ethers to 3‐Aroylpyrrolo[2,1‐c][1,4]benzoxazine‐1,2,4‐triones.
Authors: Stepanova E. E. , Babenysheva A. V. , Maslivets A. N. 
Published: November 2010

AbstractThe title reaction gives representatives (III) of a novel, difficultly accessible bridged heterocyclic system.
ChemInform Abstract: Synthesis of 2‐Boryl‐ and Silylindoles by Copper‐Catalyzed Borylative and Silylative Cyclization of 2‐Alkenylaryl Isocyanides.
Authors: Tobisu Mamoru , Fujihara Hirokazu , Koh Keika , Chatani Naoto 
Published: November 2010

AbstractA new and widely applicable method affords the target compounds which are useful synthons for other 2‐substituted indoles and fused analogues such as paullone (VII), a kinase inhibitor.
ChemInform Abstract: JBIR‐65, a New Diterpene, Isolated from a Sponge‐Derived Actinomadura sp. SpB081030SC‐15.
Authors: Takagi Motoki , Motohashi Keiichiro , Khan Shams Tabrez , Hashimoto Junko , Shin‐ya Kazuo 
Published: November 2010

AbstractThe new diterpene JBIR‐65 (I) shows radical‐scavenging activity but no cytotoxic or antibacterial activity.
ChemInform Abstract: Heck Reaction of Amino Acid Derived Vinyl Substrates in the Synthesis of Homotyrosinol Derivatives.
Authors: Liang Huan , Zhou Yuan , Ciufolini Marco A. 
Published: November 2010

AbstractCatalyst screening reveals that N‐phenylurea in combination with Pd(O‐Ac)2 is superior, even when compared to “Phos”‐type ligands.
ChemInform Abstract: Two‐Step Iron(0)‐Mediated N‐Demethylation of N‐Methyl Alkaloids.
Authors: Kok Gaik B. , Pye Cory C. , Singer Robert D. , Scammells Peter J. 
Published: November 2010

AbstractN‐Oxides, readily obtained by oxidation of the N‐methylated substrate with MCPBA, are subjected to treatment with elemental iron.
ChemInform Abstract: Sensitized Two‐Photon Photochemical Deprotection.
Authors: Pirrung Michael C. , Dore Timothy M. , Zhu Yue , Rana Vipul S. 
Published: November 2010

AbstractThe photochemical deprotection of compound (I) in the presence of isopropyl thioxanthone as a two‐photon sensitizer is reported.
ChemInform Abstract: Electromechanical Computing at 500 °C with Silicon Carbide.
Authors: Lee Te‐Hao , Bhunia Swarup , Mehregany Mehran 
Published: November 2010

AbstractA microfabricated electromechanical inverter with SiC nanoelectromechanical system switches is developed that is capable of operating at 500 °C with ultralow leakage current achieving virtually zero off‐state current, microwave operating frequencies, and radiation hardness.
ChemInform Abstract: Discovery of Novel 1H‐Imidazol‐2‐yl‐pyrimidine‐4,6‐diamines as Potential Antimalarials.
Authors: Gray Nathanael S. , et al. et al. 
Published: November 2010

AbstractNewly synthesized title compounds (I) show potent activity against the erythrocyte‐stage of Plasmodium falciparum, the most causative agent of malaria.
Heavy Metal Determination and Pollution of the Soil and Plants of Southeast Tavşanlı (Kütahya, Turkey)
Authors: Arık Fetullah , Yaldız Tahsin 
Published: November 2010

AbstractThe investigation area is located to the east of Kütahya–Tavşanlı and, covers an area about 150 km2. The units cropping out in the study area comprise of metamorphic, volcanic, and sedimentary rocks ranging from Upper Paleozoic to Quaternary. There are some polymetallic ore deposits represented by silver, zinc, lead, and antimony deposits and some enrichments related to them such as As, Cd, Tl, Cu, Mn, Ba, and Sr around the Aktepe at the southeast of the study area. In order to investigate the heavy metal contents and contamination in soil and plants, some leaves, branches, and fruits of trees (Salix, oak: Quercus sp., pine: Pinus sp., apple: Malus communis, walnut: Juglans regia, poplar: Populus sp., plane: Platanus orientalis, pear: Pyrus communis, oleaster: Elaeagnus angustifolia) and some herbaceous plants like prickle and meadow samples have been collected and subjected to geochemical analysis. Mean element concentrations of soil samples are 0.7 ppm Ag, 82.6 ppm Pb, 165.3 ppm Zn, and 8.5 ppm Sb. The concentration of As, Cd, Tl, Cu, Mn, Ba, and Sr are 203.3, 1.5, 1.7, 32.6, 1059.5, 718.4, and 289.6 ppm, respectively. With respect to plants the average heavy metal concentrations are 0.14 ppm Ag, 2.49 ppm Pb, 52.34 ppm Zn, and 1.05 ppm Sb and the average concentration of As, Cd, Tl, Cu, Mn, Ba, and Sr are 4.41, 0.64, 0.19, 6.54, 119.80, 39.46 versus 41.21 ppm, respectively. Element distributions of soil and plants depend on to the distance from the present Ag–Pb–Zn–Sb deposits. Element concentrations of plants differ depending on not only plant type like tree and herbaceous plants but also the types of samples such as leaves, branches, or fruits of trees. Especially leaves of trees and herbaceous plants have relatively higher element concentrations. Therefore, people who and animals which live in this area and benefit from these soil and plants have vital risks.
Reduction of Ammonia, Hydrogen Sulfide, and Short‐Chain Fatty Acids Emission during the Sewage Sludge Composting
Authors: Chen Liu , Xin‐Wu Wu 
Published: November 2010

AbstractThe effect of mature compost (MC) used as a bulking agent on ammonia, hydrogen sulfide, and short‐chain fatty acids emission reduction during sewage sludge (SS) composting process was studied in this paper. Three types of mixtures, single SS, SS + wood chips (SS + WC), and SS + MC, were composted in a laboratory reactor. Among the different treatments, decrement rates of NH3 emission (based on initial TN) from SS to SS + MC and SS + WC to SS + MC were 63 and 59%, respectively. The H2S concentration ranged from 0.759 to 1.140 mg m−3 for SS, from 0.075 to 0.455 mg m−3 for SS + WC, and from 0.075 to 0.425 mg m−3 for SS + MC and the short‐chain fatty acids (C2–C5) concentration ranged from 0.10 to 1.00 ppm for SS, from 0.10 to 1.50 ppm for SS + WC, and from 0.10 to 0.80 ppm for SS + MC. In addition, the temperature apparently, as well as the thermophilic stage, was also elevated by bulking agent addition, especially by the MC addition. The denaturing gradient gel electrophoresis analysis indicated that there was more diversity of the bacterial community during the SS + MC process. According to these results, MC was a suitable bulking agent for reduction ammonia, hydrogen sulfide, and short‐chain fatty acids emission during the SS composting.