bluuebunny/crossref_metadata_2025_split huggingface dataset:
MS‐based glycomic strategies for probing the structural details of polylactosaminoglycan chain on N‐glycans and glycoproteomic identification of its protein carriers
Authors: Wang Shui‐Hua , Wu Sz‐Wei , Khoo Kay‐Hooi 
Published: May 2011

AbstractMost MS‐based glycomic and glycoproteomic analyses focus on identifying changes in terminal glyco‐epitopes represented by sialylation and fucosylation at specific positions of the terminal N‐acetyllactosamine units. Much less attention was accorded to the underlying linear or branched poly‐N‐acetyllactosamine extension from the N‐glycan trimannosyl core other than a simple inference of its presence due to mass data and hence glycosyl compositional assignment. Using the EA.hy926 cell line derived from human umbilical vein endothelial cells (HUVEC), we have systematically investigated the MALDI‐ and ESI‐MS‐based methodologies for probing the structural details of endothelial polylactosaminoglycans at both MS and MS2 levels in conjunction with the use of endo‐β‐galactosidase to identify branching motifs and initiation sites. We showed that the polylactosaminoglycan chains on the N‐glycans of EA.hy926 were less sialylated and fucosylated but more extended and branched than those of human umbilical vein endothelial cells, thus demonstrating a fundamental glycomic difference. For EA.hy926 that was investigated in more details, its polylactosaminoglycan chains were shown to be not restricted to extending from a specific antenna including the biologically important 6‐arm position. Finally, experimental conditions for glycopeptide enrichment by tomato lectin were further optimized, which led to identification of over 40 candidate endothelial membrane protein carriers of polylactosaminoglycans by proteomic analysis.
Highly active, thermo‐responsive polymeric catalytic system for reuse in aqueous and organic CuAAC reactions
Authors: Wallyn Sofie , Lammens Mieke , O'reilly Rachel K. , Prez Filip Du 
Published: May 2011

AbstractTris‐(benzyltriazolylmethyl)amine (TBTA) has been immobilized onto a styrenic monomer and subsequently copolymerized with N‐isopropyl acrylamide (NIPAM) to afford catalytically active thermo‐responsive copolymers for copper assisted click chemistry. P(TBTA‐co‐NIPAM) copolymers were synthesized with incorporation of between 2 and 10 ligand units per chain and tuneable molecular weight (28–148 kDa). A combination of 1H NMR spectroscopy, size exclusion chromatography (SEC) and elemental analysis (EA) confirmed the controlled synthesis of these polymers and allowed for quantification of the degree of TBTA‐functionalized monomer incorporation. After loading with copper(I) bromide, this homogeneous catalyst system was added to a water/ethyl acetate two‐phase system. Using this biphasic system aqueous click reactions could be performed at room temperature, while organic click chemistry could be performed above the cloud point temperature of the catalyst system. The polymer catalyst system could be regenerated via extraction by making use of its lower critical solution temperature (LCST)‐behavior, and then reused for further copper(I) catalyzed azide‐alkyne cycloaddition (CuAAC) reactions. While a reduced catalytic activity is observed as a result of copper leaching in aqueous click reactions, the recycling experiments in the organic phase demonstrated that this copolymer supported system allows for efficient recycling and reuse. © 2011 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2011
Patient versus clinician symptom reporting: how accurate is the detection of distress in the oncologic after‐care?
Authors: Werner Andreas , Stenner Caroline , Schüz Joachim 
Published: May 2011

AbstractObjective: The high prevalence of psychosocial distress in cancer patients is well known. The objective of this study was to investigate the agreement between the self‐report of patients and the detection of distress by the treating physicians.Methods: The participating patients were all enrolled in a structured 5‐year after‐care program in Palatinate, Germany. All tumor‐free patients with a scheduled follow‐up exam in a 3‐month time frame were asked to fill in a questionnaire regarding their psychosocial distress. The treating physicians participating in the program are family doctors or specialized physicians working in general practices. Their assessment of the patients' distress is part of the program. Agreement was evaluated using the kappa statistic.Results: The levels of psychosocial distress were very high in the self‐rating of 2642 patients. Low concordance was observed between the ratings of the patients and the physicians, with all kappa values below 0.1. Only about every 10th patient reporting weak to severe problems with depression or anxiety was identified as such. Detection of problems by physicians was somewhat better for female than male patients and highest among breast cancer patients.Conclusions: Overall the results of our study show that the need for psychosocial support extends past the acute treatment phase. The recognition of psychosocial distress in their patients seems to be extremely low in the outpatient, follow‐on care phase. The application of an efficient rating method should become a routine part of the follow‐up exams with physicians being trained to improve their abilities to detect the distress in the patient. Copyright © 2011 John Wiley & Sons, Ltd.
A novel method for designing nanostructured polymer surfaces for reduced bacteria adhesion
Authors: Dayyoub Eyas , Belz Elvira , Dassinger Nina , Keusgen Michael , Bakowsky Udo 
Published: May 2011

AbstractBacteria adhesion on implant surfaces is the major reason for local and systemic infections after implantation. In order to establish an anti‐adhesion material, we constructed self‐assembly nanostructured surfaces by wetting of poly(lactic‐co‐glycolic acid) (PLGA) films in ethyl acetate followed by a next step of dewetting under wet conditions. The resulting films had nanostructured surfaces with pores at nanoscale range between 200 and 500 nm. E. coli adhesion was examined on both flat spin coated and nanostructured PLGA films. The observations revealed that the bacterial adhesion onto the nanostructured surfaces was reduced in compared to the flat surfaces. Pore sizes affected the bacteria adhesion significantly. Due to its high biocompatibility and effectiveness against bacterial adhesion, these surfaces are ideal for biomedical device coatings.
Wideband near‐infrared phosphor by stacking Sm3+ doped glass underneath Yb3+, Nd3+ co‐doped glass
Authors: Fuchi Shingo , Takeda Yoshikazu 
Published: May 2011

AbstractWe synthesized Sb2O3‐B2O3‐Bi2O3 glasses doped with Sm3+ in order to increase the spectral width of an Yb3+, Nd3+ co‐doped glass phosphor. We successfully realized wideband luminescence from 850 nm to 1220 nm by stacking the Sm3+ doped glass phosphor (1.1Sm2O3‐44.4Sb2O3‐44.6B2O3‐9.9Bi2O3, in nominal molar composition, thickness of 1mm) underneath the Yb3+, Nd3+ co‐doped glass phosphor (1.2Yb2O3‐1.1Nd2O3‐43.9Sb2O3‐44.1B2O3‐9.7Bi2O3, thickness of 1mm). On the other hand, luminescence of the Sm3+, Yb3+, and Nd3+ tri‐doped glass phosphor (1.1Sm2O3‐1.2Yb2O3‐1.1Nd2O3‐44.4Sb2O3‐44.6B2O3‐9.9Bi2O3, thickness of 2 mm) was almost the same as that of the Yb3+, Nd3+ co‐doped glass phosphor. These results indicate that stacking the Sm3+ doped glass phosphor underneath the Yb3+, Nd3+ co‐doped glass phosphor is a good approach to realize the wideband near‐infrared phosphor. (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Electronic, optical and elastic properties of CuXS2 (X=Al, Ga, In) and AgGaS2 semiconductors from first‐principles calculations
Authors: Brik Mikhail G. 
Published: May 2011

AbstractFour ternary semiconductors (CuAlS2, CuGaS2, CuInS2, AgGaS2) are analyzed using DFT based ab initio method as implemented in the CASTEP module of Materials Studio. Structural, electronic, elastic and optical properties are consistently calculated and compared among all compounds and with other data available in the literature; good agreement between the results of calculations and experimental data was demonstrated (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Study of functional properties of thermally irreversible photochromic diarylethenes in various aggregate states
Authors: Platonova I. V. , Barachevsky V. A. , Yarovenko V. N. , Christoforova L. V. , Krayushkin M. M. 
Published: May 2011

AbstractOne of problems for a development of multilayer recording media for 3D bitwise working optical memory is making thin photochromic layers containing maximal concentration of photochromic compounds in the layer and developing a high efficiency of photochromic transformations. In this connection, the comparative spectral‐kinetic study of photochromism for certain thermally irreversible diarylethenes in solution, a polymer matrix and a solid film without the polymer binder was carried out for the first time. As a photochromic compounds 1,2‐bis(3‐benzothienyl‐6‐carboxyl‐2‐methyl)cyclopentene and 1,2‐bis(3‐benzothienyl‐2‐methyl‐6‐phenyl‐carbonyl)cyclopentene synthesized by the reaction of 1,2‐bis(3‐benzothienyl‐2‐methyl) cyclo‐pentene with corresponding acylation agents were used.Polymethylmethacrylate and polycarbonate (both in granulated form and thin film) were selected as polymer binders. Differences in the structure of diarylethene not lead to any fundamental changes in the photochromic properties, in the applicable state of matter, as it was detected. The dependences of the efficiency for processes such as photocoloration, photobleaching and photodegradation from the aggregate state, the nature of the polymer binder and the structure of photochromic compounds have been revealed. The obtained results indicate that photochromic films both polymeric and thin solid are characterized by comparable photosensitivity and can be used for making a multilayer recording media for 3D bitwise working optical memory. (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Influence of oxidation temperature on photoluminescence and electrical properties of amorphous thin film SiC:H:O+Tb
Authors: Gordienko S. O. , Nazarov A. N. , Rusavsky A. V. , Vasin A. V. , Gomeniuk Yu. V. , Lysenko V. S. , Strelchuk V. V. , Nikolaenko A. S. , Ashok S. 
Published: May 2011

AbstractThe influence of low‐temperature oxidation on chemical composition, luminescent and electrical properties of a‐Si1‐xCx:H thin films fabricated by reactive RF magnetron sputtering has been studied. A strong dependence on RF sputtering power is seen on the electrical and chemical properties. The a‐Si1‐xCx:H films fabricated by low RF power levels followed by low‐temperature oxidation (at 450 °C‐500 °C) display high intensity of PL, good MOSCV characteristic and low leakage current through the dielectric. Increase of oxidation temperature increases precipitation of carbon nano‐inclusions in the materials, that result in reduction of PL intensity and increase of dielectric leakage. (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Anderson localization of counterpropagating beams in optically induced photonic lattices
Authors: Jović Dragana , Belić Milivoj 
Published: May 2011

AbstractIn a numerical study, we report the first observation of transverse Anderson localization of mutually incoherent counterpropagating beams in optically induced disordered two‐dimensional photonic lattices, recorded in a photorefractive crystal. We consider a system of two broad probe beams propagating head‐on through the fixed photonic lattice. We demonstrate Anderson localization of the probe beams, by adding random disorder to the lattice. Changing the disorder we observe localization effects of the probe beams. In addition to steady state localization, we also observe the dynamical localization; that is, Anderson localization of the unstable, time‐changing counterpropagating beams (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
High‐pressure high‐temperature synthesis and structure of β‐MgSiN2
Authors: Andrade Miria , Dzivenko Dmytro , Miehe Gerhard , Boehler Reinhard , Hintzen Hubertus T. , Riedel Ralf 
Published: May 2011

AbstractA new phase of magnesium silicon nitride, β‐MgSiN2, is synthesized in a laser‐heated diamond anvil cell at pressure of 27 GPa and temperatures exceeding 2000 K. It crystallises in a rhombohedral caswellsilverite‐type structure (space group $ (R \bar 3m) $ with both Mg and Si atoms in octahedral coordinations – in agreement with earlier DFT calculations. In contrast to recent shock compression investigation, the β‐phase is found to metastably persist at ambient conditions. (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Application of six sigma methodology to reduce defects of a grinding process
Authors: Gijo E. V. , Scaria Johny , Antony Jiju 
Published: May 2011

AbstractSix Sigma is a data‐driven leadership approach using specific tools and methodologies that lead to fact‐based decision making. This paper deals with the application of the Six Sigma methodology in reducing defects in a fine grinding process of an automotive company in India. The DMAIC (Define–Measure–Analyse–Improve–Control) approach has been followed here to solve the underlying problem of reducing process variation and improving the process yield. This paper explores how a manufacturing process can use a systematic methodology to move towards world‐class quality level. The application of the Six Sigma methodology resulted in reduction of defects in the fine grinding process from 16.6 to 1.19%. The DMAIC methodology has had a significant financial impact on the profitability of the company in terms of reduction in scrap cost, man‐hour saving on rework and increased output. A saving of approximately US$2.4 million per annum was reported from this project. Copyright © 2011 John Wiley & Sons, Ltd.
Theoretical study on the one‐, two‐, and three‐photon absorption properties of exohedral functionalized derivative of Sc3N@C80
Authors: Wang Jin‐Yun , Lin Chen‐Sheng , Zhang Min‐Yi , Chai Guo‐Liang , Cheng Wen‐Dan 
Published: May 2011

AbstractGeometrical structures of three investigated molecules Sc3N@C80, Sc3N@C80‐Fc, and C60‐Fc were optimized by density functional theory (DFT) at the B3LYP/6‐31G* level. Then the time‐dependent DFT was employed to investigate the excited states of these molecules. After exohedral functionalization by ferrocene (Fc‐) group as the electron donor or replacing C60 with Sc3N@C80 as the electron acceptor, the wavelengths of the first one‐photon absorption peak and the strongest two‐photon absorption (2PA) and three‐photon absorption (3PA) peaks shift red. The corresponding cross sections of Sc3N@C80‐Fc in the 2PA and 3PA processes increase as compared with those of Sc3N@C80, which originate from the contributions of charge transfers from Fc‐ group to C80 cage and simultaneously the transfers from the C80 cage to the encapsulated Sc3N cluster. When compared with C60‐Fc, the 2PA and 3PA cross sections of Sc3N@C80‐Fc decrease, which may result from the more negative charge surface of C80 cage in Sc3N@C80‐Fc molecule which blocks the charge transfers from Fc‐ moiety to the C80 cage in the excitation processes by compared with C60‐Fc. © 2011 Wiley Periodicals, Inc. Int J Quantum Chem, 2012
CASPT2 study on low‐lying states of HMgO and HOMg
Authors: Li WEN‐ZUO , GENG FANG‐FANG , PEI YU‐WEI , CHENG JIAN‐BO , LI QING‐ZHONG , GONG BAO‐AN 
Published: May 2011

AbstractThe HMgO and magnesium monohydroxide (HOMg) have been reinvestigated using the complete active space self‐consistent field (CASSCF) and multiconfiguration second‐order perturbation theory (CASPT2) methods with the contracted atomic natural orbital (ANO) basis sets. The geometries of all stationary points along the potential energy surfaces (PESs) were optimized at the CASSCF/ANO levels. The ground and the first excited states of HMgO are predicted to be X2Π and A2Σ+ states, respectively. It was predicted that the ground state of HOMg is X2Σ+ state. The A2Π state of HOMg has unique imaginary frequency. A bent local minimum M1 was found for the first time along the 12A″ PES and the A2Π state of HOMg should be the transition state of the isomerization reactions for M1 ↔ M1. The CASPT2/ANO potential energy curves of isomerization reactions were calculated as a function of HMgO bond angle. © 2011 Wiley Periodicals, Inc. Int J Quantum Chem, 2012
On characteristic roots and stability charts of delay differential equations
Authors: Breda D. 
Published: May 2011

SUMMARYThis work is devoted to the analytic study of the characteristic roots oftextitscalar autonomous delay differential equations with either real or complex coefficients. The focus is placed on the robust analysis of the position of the roots in the complex plane with respect to the variation of the coefficients, with the final aim of obtaining suitable representations for the relevant stability boundaries and charts. While the real case is almost standard (and known), the investigation of the complex case is not as immediate. Hence, a preliminary shift of the coefficients is proposed, which reduces the number of free parameters. This allows to extend the techniques used for the real case, also allowing for useful graphical visualization of the relevant stability charts. The present research is motivated on the basis of studying the stability of systems with delay. Copyright © 2011 John Wiley & Sons, Ltd.
Improved results on frequency‐weighted balanced truncation and error bounds
Authors: Sreeram V. , Sahlan S. 
Published: May 2011

SUMMARYIn this paper, we present some new results on frequency‐weighted balanced truncation which is a significant improvement on Lin and Chiu's frequency‐weighted balanced truncation technique. The reduced‐order models, which are guaranteed to be stable in the case of double‐sided weighting, are obtained by direct truncation. Two sets of simple, elegant and easily calculatable a priori error bounds are also derived. Numerical examples and comparison with other well‐known techniques show the effectiveness of the proposed technique. Copyright © 2011 John Wiley & Sons, Ltd.
Anonymous proxy re‐encryption
Authors: Shao Jun , Liu Peng , Wei Guiyi , Ling Yun 
Published: May 2011

ABSTRACTProxy re‐encryption (PRE) is a public key encryption that allows a semi‐trusted proxy with some information (a.k.a., re‐encryption key) to transform a ciphertext under one public key into another ciphertext under another public key. Because of this special property, PRE has many applications, such as the distributed file system. Some of these applications demand that the underlying PRE scheme is anonymous under chosen‐ciphertext attacks (CCAs); that is, the adversary cannot identify the recipient of the original/transformed ciphertext, even if it knows the PRE key and can launch the CCA. However, to the best of our knowledge, none of the existing PRE schemes satisfy this requirement. In this work, we propose the first anonymous PRE with CCA security and collusion resistance. Our proposal is proved in the random oracle model based on the DDH assumption. Copyright © 2011 John Wiley & Sons, Ltd.
Electronic Interactions between “Pea” and “Pod”: The Case of Oligothiophenes Encapsulated in Carbon Nanotubes
Authors: Gao Jia , Blondeau Pascal , Salice Patrizio , Menna Enzo , Bártová Barbora , Hébert Cécile , Leschner Jens , Kaiser Ute , Milko Matus , Ambrosch‐Draxl Claudia , Loi Maria Antonietta 
Published: May 2011

AbstractOne of the most challenging strategies to achieve tunable nanophotonic devices is to build robust nanohybrids with variable emission in the visible spectral range, while keeping the merits of pristine single‐walled carbon nanotubes (SWNTs). This goal is realized by filling SWNTs (“pods”) with a series of oligothiophene molecules (“peas”). The physical properties of these peapods are depicted by using aberration‐corrected high‐resolution transmission electron microscopy, Raman spectroscopy, and other optical methods including steady‐state and time‐resolved measurements. Visible photoluminescence with quantum yields up to 30% is observed for all the hybrids. The underlying electronic structure is investigated by density functional theory calculations for a series of peapods with different molecular lengths and tube diameters, which demonstrate that van der Waals interactions are the bonding mechanism between the encapsulated molecule and the tube.
Druckrohrleitungen von Wasserkraftanlagen aus Stahl
Authors: Greiner Richard 
Published: May 2011

AbstractIm Zuge der Implementierung der Eurocodes ist auch der Teil EN 1993‐4‐3 “Rohrleitungen” aus Stahl eingeführt worden, dessen Status im Rahmen der weiten bestehenden Normenlandschaft von Rohrleitungen verschiedener Anwendungsart eine nähere Erklärung erforderlich macht. In der ÖNORM B 1993‐4‐3, dem sogenannten Nationalen Anhang zu obigem Eurocode in Österreich, wird eine solche gegeben, sowie eine ergänzende Regelung angeschlossen, die sich auf die bisher nicht normenmäßig erfassten Druckrohrleitungen von Wasserkraftanlagen bezieht. Obwohl diese derzeit auf Anwendungen von Kleinkraftwerken, d. h. begrenzte Rohrdurchmesser und Innendrücke, beschränkt sind, können dem Beitrag die wesentlichen Inhalte und Hintergründe entnommen werden.Pressure piping of hydro‐power plants ‐ Eurocode‐conformal regulations in the Austrian National Annex of the EN 1993‐4‐3. By implementation of the Eurocodes the part EN 1993‐4‐3 ”Pipelines” has also been published. Its real status within the wide field of existing pipeline‐standards for various applications needs closer explanation. In the ÖNORM B 1993‐4, i.e. the Austrian National Annex of the above Eurocode, such a commentary is g iven as well as additional rules for pressure piping of hydro‐power plants which so far were not covered by specific standardization. Although, presently restricted in application to power plants of limited magnitudes of internal pressure and pipe diameter the general concept and the background may be taken from this paper.
Ertüchtigung eines Gründerzeithauses für den Lastfall Erdbeben
Authors: Hejkrlik Gerhard , Weber Michail 
Published: May 2011

AbstractInfolge einer Umwidmung eines ehemaligen Geschäftslokals in einen Kindergarten verlangte die Baubehörde eine Verbesserung der Horizontalaussteifung des in den 60er Jahren geschwächten Gründerzeitgebäudes. Die Erdbebensicherheit von Gründerzeithäusern wird erläutert. Die erfolgte Ertüchtigung des Gebäudes wird beschrieben.Strengthening of a Gründerzeit building for the load case earthquake. As a consequence of a rededication of a former salesroom to a kindergarten the building authority demanded a strengthening of the horizontal stability of the Gründerzeit building, which was weakened by removing walls in the 1960s. The earthquake resistance of Gründerzeit buildings is explained. The strengthening of the building is described.