bluuebunny/crossref_metadata_2025_split huggingface dataset:
A comparison of nine PLS1 algorithms
Authors: Andersson Martin 
Published: July 2009

AbstractNine PLS1 algorithms were evaluated, primarily in terms of their numerical stability, and secondarily their speed. There were six existing algorithms: (a) NIPALS by Wold; (b) the non‐orthogonalized scores algorithm by Martens; (c) Bidiag2 by Golub and Kahan; (d) SIMPLS by de Jong; (e) improved kernel PLS by Dayal; and (f) PLSF by Manne. Three new algorithms were created: (g) direct‐scores PLS1 based on a new recurrent formula for the calculation of basis vectors yielding scores directly from X and y; (h) Krylov PLS1 with its regression vector defined explicitly, using only the original X and y; (i) PLSPLS1 with its regression vector recursively defined from X and the regression vectors of its previous recursions. Data from IR and NIR spectrometers applied to food, agricultural, and pharmaceutical products were used to demonstrate the numerical stability. It was found that three methods (c, f, h) create regression vectors that do not well resemble the corresponding precise PLS1 regression vectors. Because of this, their loading and score vectors were also concluded to be deviating, and their models of X and the corresponding residuals could be shown to be numerically suboptimal in a least squares sense. Methods (a, b, e, g) were the most stable. Two of them (e, g) were not only numerically stable but also much faster than methods (a, b). The fast method (d) and the moderately fast method (i) showed a tendency to become unstable at high numbers of PLS factors. Copyright © 2009 John Wiley & Sons, Ltd.
Sintering behavior of ZnO:Al ceramics fabricated by sol‐gel derived nanocrystalline powders
Authors: Bahşi Z. B. , Aslan M. H. , Ozer M. , Oral A. Y. 
Published: July 2009

AbstractZnO:Al ceramics (Zn:Al, 0.95:0.05) were prepared by using sol‐gel derived nanocrystalline powders. XRD patterns of the doped ceramics revealed the existence of both zincite (JCPDS 36‐1451) and gahnite (JCPDS 5‐0669) phases. Gahnite phase (ZnAl2O4) was segregated along the ZnO grain boundaries. At the sintering temperature of 1200 °C, relative density of the undoped and Al doped ceramics were measured as 0.695 and 0.628, respectively. Both grain size and relative density of the ceramics decreased with Al doping. (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Induction time of silver nanoparticles precipitation: Experiment and modeling
Authors: Hatami N. , Ghader S. 
Published: July 2009

AbstractThis paper describes the measurement of induction time in precipitation of silver nanoparticles at different temperatures and supersaturations, and models it with Smoluchowski's coagulation theory. Silver nanoparticles are synthesized by reaction of silver nitrate with hydrazine in the presence of sodium citrate as stabilizer. The rate of association between clusters is found to depend on temperature and their sizes. The activation energy for the association between two clusters and interfacial tension of silver nanoparticles were also estimated. The results also show that induction time decreases with increasing supersaturation and temperature. (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Precipitation of nesquehonite from homogeneous supersaturated solutions
Authors: Cheng Wenting , Li Zhibao 
Published: July 2009

AbstractThe homogeneous (unseeded) precipitation of nesquehonite (MgCO3·3H2O) was studied over the temperature range of 10‐40 °C. Precipitation was triggered by the supersaturation created by mixing MgCl2 solution (0.5‐1.5 M) with Na2CO3 solution in the same concentration range. The Meissner's method was adopted in the calculation of supersaturations during the MgCl2‐Na2CO3 reaction to monitor the precipitation. Solids were identified using X‐ray diffraction (XRD) analysis and scanning electron microscope (SEM) images. In the temperature range of 10‐40 °C, MgCO3·3H2O with needle‐like or gel‐like morphology was precipitated. It was seen that the length, width and surface smoothness of the particles changed with reaction temperature and supersaturation. The supersaturation (S) was in the range of 1.09‐58.68 during titration of Na2CO3 solution. The dimension of the crystals increased with longer addition time (or lower initial concentration of reactant) at the same temperature. Slower addition via titration of 2 h followed by 2 h of equilibration at 40 °C proved successful in producing well developed needle‐like MgCO3·3H2O crystals of 30‐50 μm long and 3‐6 μm wide. MgCO3·3H2O obtained were calcined to produce highly pure magnesium oxide (MgO) at 800 °C. The morphology of MgO was similar to that of their corresponding precursors. (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Sustainable supply chain management and inter‐organizational resources: a literature review
Authors: Gold Stefan , Seuring Stefan , Beske Philip 
Published: July 2009

AbstractOn the basis of a content analysis, this paper explores the role of sustainable supply chain management as a catalyst of generating valuable inter‐organizational resources and thus possible sustained inter‐firm competitive advantage through collaboration on environmental and social issues. Drawing on the resource‐based view and its extension, the relational view, this paper highlights that partner‐focused supply management capabilities evolve to corporate core competences as competition shifts from an inter‐firm to an inter‐supply‐chain level. The ‘collaborative paradigm’ in supply chain management regards strategic collaboration as a crucial source of competitive advantage. Collaboration is even more essential when supply chains aim at ensuring simultaneously economic, environmental and social performance on a product's total life‐cycle basis. Inter‐firm resources and capabilities emerging from supply‐chain‐wide collaboration are prone to become sources of sustained inter‐firm competitive advantage, since they are socially complex, causally ambiguous and historically grown and hence particularly difficult to imitate by competitors. Copyright © 2009 John Wiley & Sons, Ltd and ERP Environment.
CSR and the environment: business supply chain partnerships in Hong Kong and PRDR, China
Authors: Cheung Dennis K. K. , Welford Richard J. , Hills Peter R. 
Published: July 2009

AbstractCross‐border relocation of the production lines of Hong Kong companies to the Pearl River Delta Region (PRDR) of China relocates the pollution source geographically. In contextualizing corporate social responsibility (CSR), more and better collaborations on environmental management between Hong‐Kong‐based companies and their supply chains within Hong Kong and the PRDR are needed. Using a qualitative approach, this research identifies and examines nine concerned business supply chain partnership cases. Stakeholders perceived that partnership is a good tool for improving corporate environmental management. However, although it has become more active since 2002, partnership is not yet popular. More time and support are needed to develop it. Businesses should take further steps to benefit themselves and the environment. Based on the first‐hand experiences and opinions of interviewees, this paper analyzes and presents recent partnership activities; their drivers and barriers; factors in their successes; and the possible roles of government and business associations in fostering partnership development. Copyright © 2009 John Wiley & Sons, Ltd and ERP Environment.
The UN Global Compact and the Enlightenment tradition: a rural electrification project under the aegis of the UN Global Compact
Authors: Egels‐Zandén Niklas , Kallifatides Markus 
Published: July 2009

AbstractDespite extensive academic debate as to what corporate social responsibility (CSR) and other related conceptsoughtto encompass, there is a lack of critical analysis of what CSR in practice entails, i.e., whatactuallyconstitutes CSR practices. This paper critically addresses this question by focusing on one of the most influential CSR initiatives – the UN Global Compact. We demonstrate that the principles of the Global Compact are rooted in a European Enlightenment tradition and, based on a study of an Asea Brown Boveri (ABB) CSR project in a Tanzanian village, we illustrate how these principles translate into corporate projects that challenge local institutions, while remaining unquestioned. The paper concludes by opening a space for discussing the desirability of the Enlightenment ethos manifested in Global Compact projects. Copyright © 2009 John Wiley & Sons, Ltd and ERP Environment.
Generation of cortactin floxed mice and cellular analysis of motility in fibroblasts
Authors: Tanaka Shinji , Kunii Masataka , Harada Akihiro , Okabe Shigeo 
Published: July 2009

AbstractCortactin is an F‐actin binding protein that has been suggested to play key roles in various cellular functions. Here, we generated mice carrying floxed alleles of the cortactin (Cttn) gene (Cttnflox/flox mice). Expression of Cre recombinase in mouse embryonic fibroblasts (MEFs) isolated from Cttnflox/flox embryos depleted cortactin within days, without disturbing F‐actin distribution and localization of multiple actin‐binding proteins. Cre‐mediated deletion of Cttn also did not affect cell migration. To obtain mice with a Cttn null allele, we next crossed Cttnflox/flox mice with transgenic mice that express Cre recombinase ubiquitously. Western blot and immunocytochemical analysis confirmed complete elimination of cortactin expression in MEFs carrying homozygously Cttn null alleles. However, we found no marked alteration of F‐actin organization and cell migration in Cttn null‐MEFs. Thus, our results indicate that depletion of cortactin in MEFs does not profoundly influence actin‐dependent cell motility. genesis 47:638–646, 2009. © 2009 Wiley‐Liss, Inc.
Generation of conditional Hoxc8 loss‐of‐function and Hoxc8→Hoxc9 replacement alleles in mice
Authors: Blackburn Jessica , Rich Melissa , Ghitani Nima , Liu Jeh‐Ping 
Published: July 2009

AbstractThe Hox family of transcription factors are expressed at different domains along the rostrocaudal (R‐C) body axis during development. To examine the function of Hoxc8 and Hoxc9 in specific cell types and at different developmental times, we have generated and characterized loxP flanked (floxed) Hoxc8 and Hoxc8→Hoxc9 replacement alleles of mice, with either GFP or LacZ reporters. Although all four alleles of mice behave like wild‐type controls in motor behavioral testing, slight differences in endogenous Hox gene expression were observed among these alleles depending on the type of reporters used and the presence of Hoxc9 cDNA in the targeting constructs. The efficiency of Cre‐mediated recombination was evaluated by crossing these mice with the Nestin‐cre and Isl1‐cre mice, and the loss of Hoxc8 expression with or without Hoxc9 misexpression was confirmed in embryonic spinal cord. In addition, an upregulation of reporter gene expression was observed after Cre‐mediated recombination. These mice will be useful tools to analyze Hox gene function in a cell type‐specific manner. genesis 47:680–687, 2009. © 2009 Wiley‐Liss, Inc.
Generation of a conditional CREB Ser133Ala knockin mouse
Authors: Wingate Andrew D. , Martin Kirsty J. , Hunter Chris , Carr Julia M. , Clacher Carol , Arthur J. Simon C. 
Published: July 2009

AbstractPhosphorylation of Ser133 in the transcription factor CREB is an important mechanism for regulating its transcriptional activity, however recent work has suggested significant roles for other regulatory inputs into CREB. To allow study of this in vivo, we have generated a Ser133 to alanine knockin mutation in the mouse CREB locus. As CREB knockout is perinatal lethal, a minigene strategy was used to allow conditional knockin of the Ser133Ala mutation in adult mice using Cre recombinase. While some expression of the mutated protein was observed prior to Cre expression, following Cre expression in either T cells or neurons only the mutated CREB protein was detected. genesis 47:688–696, 2009. © 2009 Wiley‐Liss, Inc.
Solution method for multi‐product two‐stage logistics network with constraints on delivery route
Authors: Ataka Shinichiro , Gen Mitsuo 
Published: July 2009

AbstractThe logistics network design is one of the important phases of Supply Chain Management (SCM) and it is a problem that should be optimized for long‐term promotion of efficiency of the whole supply chain. Usually a plant produces different types of products. Even if it is a factory of the same company, delivery differs according to the kind of produced product. The restrictions which this model has are deeply concerned with TP in the real world. In this paper, we consider the logistics network design problems with multiple products and constraints for delivery course. To solve the problem, we used a hybrid priority‐based genetic algorithm (h‐priGA), and we tried comparison experiments with priority‐based genetic algorithm (priGA) and h‐priGA, and show the effectiveness of h‐priGA. © 2009 Wiley Periodicals, Inc. Electron Comm Jpn, 92(8): 18–24, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/ecj.10102
Starting procedure of rotation sensorless PMSM at coasting condition for railway vehicle traction
Authors: Yamakawa Toshifumi , Wakao Shinji , Kondo Keiichiro , Yoneyama Takashi , Taniguchi Shun , Mochizuki Shinsuke 
Published: July 2009

AbstractThis paper investigates the procedure for starting a rotation sensorless PMSM under coasting condition for railway vehicle traction. To achieve restarting, the initial rotor position and speed at restart are needed. The existing algorithm for estimation of the initial position and speed cannot be applied to railway vehicle traction because of the greater speed range and the longer current sampling time. We propose a novel method for estimation of the initial speed. The estimation method is verified experimentally to assure that it is suitable for application to the railway vehicle traction system. © 2009 Wiley Periodicals, Inc. Electr Eng Jpn, 169(2): 56–63, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/eej.20764
Power assist control of robotic wheelchair based on visual feedback
Authors: Oda Naoki , Shimizu Hiroyuki 
Published: July 2009

AbstractThis paper describes a method of vision‐based self‐velocity estimation and its feedback system in force/torque sensorless power assisting control of a wheelchair robot. In this method, three‐dimensional information obtained from stereo images is used along with optical flow vectors for self‐velocity estimation in real time. The human force is also estimated by a sensorless reaction force observer, and the assisting force is calculated by using an estimated force and virtual impedance model. In the paper, the force‐based assist function is integrated into a visual feedback motion controller. This approach using vision‐ and force‐based assist control makes it possible to facilitate direct intelligent interactions between human force and environments such as human following assistance, obstacle avoidance assistance, and so on. Such assistance functions are changeable by selection of the weighting matrix used in velocity estimation, which is based on weighted least square solutions obtained from optical flow vectors. The validity of the proposed approach is verified by several experimental results. © 2009 Wiley Periodicals, Inc. Electr Eng Jpn, 169(2): 21–28, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/eej.20887
Metal Complexes of 4,11‐Dimethyl‐1,4,8,11‐tetraazacyclotetradecane‐1,8‐bis(methylphosphonic acid) – Thermodynamic and Formation/Decomplexation Kinetic Studies
Authors: Svobodová Ivona , Havlíčková Jana , Plutnar Jan , Lubal Přemysl , Kotek Jan , Hermann Petr 
Published: July 2009

AbstractThe macrocyclic ligand with two methylphosphonic acid pendant arms, 4,11‐dimethyl‐1,4,8,11‐tetraazacyclotetradecane‐1,8‐bis(methylphosphonic acid) (1,8‐H4Me2te2p, H4L3), was synthesized by a new simple approach. The product of the reaction of quarternized formaldehyde cyclam aminal with the sodium salt of diethyl phosphite was hydrolyzed to give a very high yield of the title ligand. The (H6L3)2+ cation in the solid state is protonated on all ring nitrogen atoms and on each phosphonate group. In the solid‐state structure of [Cu(H3L3)][Cu(H2L3)]PF6·3H2O, neutral as well as positively charged complex species are present. Molecular structures of both species are very similar having the copper(II) ion in a coordination environment between square‐pyramidal and trigonal‐bipyramidal arrangements (τ = 0.43 and 0.48) with one pendant arm non‐coordinated. The ligand forms stable complexes with transition‐metal ions showing a high selectivity for divalent copper atoms. The formation of complexes of the ligand with CuII, ZnII and CdII is fast, confirming the acceleration of complexation due to the presence of the strongly coordinating pendant arms. Acid‐assisted decomplexation is fast for all three metal ions. Therefore, the copper(II) complex is not suitable for medicinal applications employing copper radioisotopes, but the title ligand motive can be employed in copper(II) separation. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)
Facile Synthesis of Anatase–Brookite Mixed‐Phase N‐Doped TiO2 Nanoparticles with High Visible‐Light Photocatalytic Activity
Authors: Li Li , Liu Chun‐yan 
Published: July 2009

AbstractN‐Doped anatase–brookite bicrystal TiO2 nanocatalysts were successfully synthesized by a facile solvothermal route. The ratio of brookite to anatase can be easily tuned by changing the composition of the phase‐selective agents (acetylacetone). The samples were fully characterized. The band‐gap energy, chemical states of Ti, O, and N species, and photocatalytic activity of the as‐prepared catalysts were affected by the mixed‐phase effect of brookite and anatase. In the optimum ratio range of the phase effect from 24.6 to 75.4 % (brookite to anatase), the N‐doped TiO2 bicrystal catalyst exhibits maximum activity under both visible and UV light, which can be attributed to high quantum efficiency induced by the high concentration of OHsurface, the relatively low amount of Ti3+ sites, active N– species concentration, the relatively large surface areas, and a moderate band‐gap energy.(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)
Binuclear Magnesium, Calcium, and Zinc Complexes Based on Nitrogen–Nitrogen‐Coupled Salicylaldiminate and β‐Diketiminate Ligands
Authors: Piesik Dirk F. ‐J. , Stadler Robert , Range Sven , Harder Sjoerd 
Published: July 2009

AbstractThe diprotic bis(salicylaldimine) ligand N,N′‐bis(3,5‐di‐tBu‐salicylidene)diimine, (1‐NN)H2, was smoothly deprotonated by reaction with two equivalents of a metal amide M[N(SiMe3)2]2 (M = Mg, Ca or Zn) to form a bimetallic metal amide complex (1‐NN)[MN(SiMe3)2]2. This heteroleptic complex was only stable in the case of Mg and (1‐NN)[MgN(SiMe3)2·thf]2 was structurally characterized by X‐ray diffraction. For Ca and Zn homoleptic products could be obtained: (1‐NN)Ca·(thf)2 and (1‐NN)Zn. The latter crystallized as a trimer with approximate C3‐symmetry. The diprotic N–N coupled bis(β‐diketimine) ligand [RHN–C(Me)=C–C(Me)=N–N=C(Me)–C=C(Me)–NHR, R = 2,6‐di‐iPr‐C6H3], which is abbreviated as (2‐NN)H2, can be deprotonated only under much harsher reaction conditions. Attempted synthesis of (2‐NN)[Mg(nBu)]2 gave after ligand exchange the homoleptic species (2‐NN)Mg and Mg(nBu)2. For Ca, the complexes [(2‐NN)Ca]2 and (2‐NN)[CaN(SiMe3)2·thf]2 both have been prepared and structurally characterized by X‐ray diffraction. The latter heteroleptic complex is in benzene solution in equilibrium with [(2‐NN)Ca]2 and Ca[N(SiMe3)2]2·(thf)2. Reaction of (2‐NN)H2 with excess of Et2Zn gave the heteroleptic complex (2‐NN)[ZnEt]2 and is stable towards ligand exchange reactions. The complex is not active in CO2/cyclohexene oxide copolymerization. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)
Mono‐ and Dinuclear Coordination Compounds with Directional Bis(bidentate) Ligands
Authors: Dömer Johannes , Hupka Florian , Hahn F. Ekkehardt , Fröhlich Roland 
Published: July 2009

AbstractThe benzene‐o‐dithiol/salicylimine (S‐S/N‐O) ligands H3‐1and H3‐2have been synthesized, representing the first examples of a new type of polydentate heterodonor ligands. Schiff‐base condensation of salicylaldehyde with an amine linked to a benzene‐o‐dithiol donor group leads to the formation of the ligands. Bis(cyclopentadienyl)titanium dichloride reacts selectively at the S‐S donor groups of H3‐1and H3‐2to yield complexes [Cp2Ti(H‐1)] and [Cp2Ti(H‐2)], respectively. Ligand H3‐1reacts with [Ni(OAc)2]·4H2O to yield the mononuclear complex (Bu4N)2[Ni(H‐1)2] or the dinuclear complex (Bu4N)2[Ni2(1)2] depending on the stoichiometric conditions employed. While (Bu4N)2[Ni(H‐1)2] possesses a nickel(II) center with an S4coordination environment, the double‐stranded dinuclear complex (Bu4N)2[Ni2(1)2] contains two {NiIIS2NO} centers and shows an antiparallel orientation of the ligand strands. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)
High content of zerumbone in volatile oils of Zingiber zerumbet from southern India and Malaysia
Authors: Baby Sabulal , Dan Mathew , Thaha Abdul R. M. , Johnson Anil J. , Kurup Rajani , Balakrishnapillai Prasanth , Lim Chong Keat 
Published: July 2009

AbstractZerumbone is a sesquiterpene phytochemical with potential anticancer, anti‐inflammatory, anti‐HIV and other biological activities, most abundantly found in Zingiber zerumbet (L.) Smith. Previous studies reported 12.6–73.1% of zerumbone in Z. zerumbet rhizome oils from various geographical locations. In a careful review of the literature, we found that most of the previous gas chromatographic profiling studies on volatile oils of Z. zerumbet were inadequate, since they were based on poor identification and quantification procedures and also on single‐sample data. In this study, we report the chemical profiles of volatile oils of Z. zerumbet rhizomes from six locations in the southern Indian state of Kerala and also from Penang in Malaysia. Chemical profiling of volatiles was carried out by extensive GC–FID, GC–MS and associated techniques, supported by 1H‐NMR, 13C‐NMR, FABMS and HPTLC. The full chemical profiles of rhizome oils of these seven accessions of Z. zerumbet were elucidated. The south Indian accessions of Z. zerumbet reported 76.3–84.8% zerumbone content in their rhizome oils. The Malaysian accession recorded the lowest content of zerumbone (68.9%). This study reveals the high content of the bioactive compound zerumbone in Z. zerumbet from Kerala. Copyright © 2009 John Wiley & Sons, Ltd.
Expiration‐day effects on individual stocks and the overall market: Evidence from Taiwan
Authors: Hsieh Wen‐Liang Gideon 
Published: July 2009

AbstractOn expiration days of the MSCI‐TW index futures, the Taiwan spot market is associated with abnormally large volume and high index volatility, along with mild index reversal. The effects concentrate only in the last five minutes of expiration days and appear to be strengthened by the adoption a call auction closing procedure by the Taiwan Stock Exchange. Individual index stocks show high volatility and strong tendency of price reversal, with large‐ and small‐cap stocks being affected more than the medium‐sized stocks. The highest‐weighted stocks exhibit excessive volume and volatility, which is disproportionate to the impact on all other index stocks, indicating that the expiration‐day effects may have been amplified by the attempt of price manipulation using large‐cap stocks. © 2009 Wiley Periodicals, Inc. Jrl Fut Mark 29:920–945, 2009