bluuebunny/crossref_metadata_2025_split huggingface dataset:
Apparent low‐field microwave absorption properties of styrene‐based copolymers containing acid groups
Authors: Lee Chang Hoon , Kim Joon‐Seop 
Published: September 2008

AbstractThe microwave absorption properties of polystyrene (PS) copolymers containing sulfonic and methacrylic acid groups were investigated using an electron magnetic resonance spectroscopy method. It was found that, unlike PS and poly(methyl methacrylate) homopolymers, the acid groups containing PS copolymers showed three electromagnetic resonance signals at 3250, 3035, and 520 G; the first and last two signals were thought to be due to the presence of anion radicals and acid groups in PS, respectively. This result indicated that the PS copolymers exhibited magnetic field dependent low‐field microwave absorption behavior. This also suggested that the low‐field microwave absorption required the presence of both the aromatic and acidic groups in the materials. To explain both the low‐field absorption and magnetic field dependence, we proposed a coupled mechanism including both the magnetoplasticity associated with a plastic deformation and the rotational degree of freedom of aromatic groups containing electric dipoles with natural spin defects. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008
Sensitive liquid chromatography tandem mass spectrometry method for the quantification of Quetiapine in plasma
Authors: Nirogi Ramakrishna , Bhyrapuneni Gopinadh , Kandikere Vishwottam , Mudigonda Koteshwara , Ajjala Devender , Mukkanti K. 
Published: September 2008

AbstractA sensitive high‐performance liquid chromatography–tandem mass spectrometry method was developed and validated for the quantification of quetiapine in rat plasma. Following liquid–liquid extraction, the analyte was separated using a gradient mobile phase on a reverse‐phase column and analyzed by MS/MS in the multiple reaction monitoring mode using the respective [M + H]+ ions, m/z 384 to m/z 221 for quetiapine and m/z 327 to m/z 270 for the internal standard. The assay exhibited a linear dynamic range of 0.25–500 ng/mL for quetiapine in rat plasma. The lower limit of quantification was 0.25 ng/mL with a relative standard deviation of less than 7%. Acceptable precision and accuracy were obtained for concentrations over the standard curve range. The validated method was successfully used to analyze rat plasma samples for application in pre‐clinical pharmacokinetic studies. This method in rodent plasma could be adapted for quetiapine assay in human plasma. Copyright © 2008 John Wiley & Sons, Ltd.
Pop‐management literature: popular business press and management culture in Brazil
Authors: Wood Thomaz , de Paula Ana Paula Paes 
Published: September 2008

AbstractAs in other emerging countries, the 1990s in Brazil were characterized by profound economic changes. The business press reflected and influenced this process. Newspapers and magazines grew and assumed an important role, disseminating values associated with neoliberalism and managerialism. In this paper, we aim to contribute to the understanding of the content produced by this media and how the readership reacts to this content. To accomplish these objectives, we used the method of fantasy theme analysis (Bormann, 1972) to analyze four business magazines, and we discuss how Brazilian culture mediates the assimilation of foreign ideas and managerial expertise. Our study also helps to understand how the pop‐management literature, disseminated by the business press, echoes and reinforces managerialism and management culture. Copyright © 2008 ASAC. Published by John Wiley & Sons, Ltd.
The involvement of phospholipases C and D in the asymmetric division of subsidiary cell mother cells ofZea mays
Authors: Apostolakos Panagiotis , Panteris Emmanuel , Galatis Basil 
Published: September 2008

AbstractIn the present study, the involvement of phospholipase C and D (PLC and PLD) pathways in the asymmetric divisions that produce the stomatal complexes ofZea mayswas investigated. In particular, the polar organization of microtubules (MTs) and actin filaments (AFs) and the process of asymmetric division were studied in subsidiary cell mother cells (SMCs) treated with PLC and PLD modulators. In SMCs treated with butanol‐1 (but‐1), which blocks phosphatidic acid (PA) production via PLDs, AF‐patch formation laterally to the inducing guard cell mother cell (GMC) and the subsequent asymmetric division were inhibited. In these SMCs, cell division plane determination, as expressed by MT preprophase band (MT‐PPB) formation, was not disturbed. Exogenously applied PA partially relieved the but‐1 effects on SMCs. In contrast to SMCs, but‐1 did not affect the symmetric GMC division. Inhibition of the PLC catalytic activity by neomycin or U73122 resulted in inhibition of asymmetric SMC division, while AF‐patch and MT‐PPB were organized as in control SMCs. These data show that the PLC and PLD signaling pathways are involved in the transduction and/or perception of the inductive stimulus that is emitted by the GMCs and induces the polar AF organization and asymmetric SMC division. In contrast, division plane determination in SMCs, as expressed by MT‐PPB formation, does not depend on PLC and PLD signaling pathways. Cell Motil. Cytoskeleton 2008. © 2008 Wiley‐Liss, Inc.
Phase 3, randomized, controlled trial of atrasentan in patients with nonmetastatic, hormone‐refractory prostate cancer
Authors: Nelson Joel B. , Love William , Chin Joseph L. , Saad Fred , Schulman Claude C. , Sleep Darryl J. , Qian Jiang , Steinberg Joyce , Carducci Michael ,   for the Atrasentan Phase 3 Study Group
Published: September 2008

AbstractBACKGROUND.Atrasentan is a potent, oral, selective endothelin‐A (ETA) receptor antagonist that has clinical activity in patients with hormone‐refractory prostate cancer (HRPC). In this article, the authors report the results from a phase 3, randomized, double‐blind, placebo‐controlled trial of atrasentan in patients with nonmetastatic HRPC.METHODS.Of 941 patients who had adequate androgen suppression and no radiographic evidence of metastases but rising prostate‐specific antigen (PSA) levels, 467 patients were randomized to receive atrasentan at a dose of 10 mg, and 474 patients were randomized to receive placebo daily. The primary endpoint was the time to disease progression (TTP), which was defined as the onset of metastases. Secondary endpoints were the time to PSA progression, change in bone alkaline phosphatase (BALP) levels, PSA doubling time, and overall survival.RESULTS.There was a 93‐day delay in the median TTP with atrasentan, but the difference from placebo in TTP was not statistically significant (P = .288). Large geographic differences in the median TTP were noted: in the US: The difference was 81 days longer with placebo; whereas, in non‐US sites, the difference was 180 days longer with atrasentan. Atrasentan lengthened the PSA doubling time (P = .031) and slowed the increase in BALP (P < .001). The median survival was 1477 days with atrasentan and 1403 days with placebo. The most common adverse events associated with atrasentan were peripheral edema, nasal congestion, and headache, consistent with the vasodilatory properties of ETA receptor antagonists.CONCLUSIONS.Although the primary endpoint was not achieved, large regional differences in TTP were noted, suggesting that trial conduct may have influenced the results. The biologic activity was consistent with findings from other clinical trials of atrasentan in HRPC. Cancer 2008. © 2008 American Cancer Society.
An effective way for dealing with element distortion by nearest‐nodes FEM
Authors: Luo Yunhua 
Published: September 2008

AbstractIn this paper, the performance of recently developed nearest‐nodes finite element method (NN‐FEM) (Finite Elem. Anal. Des.2007;44:797–803;Int. J. Solids Struct.2008;45:5074–5087;Adv. Theor. Appl. Mech.2008;1:131–139) in dealing with element distortion is investigated. Numerical results demonstrated that the accuracy of NN‐FEM is nearly unaffected by element distortion. The reason is that in NN‐FEM, a set of nearest nodes of a quadrature point is always selected for the construction of shape functions. In this way, the quality of shape functions is solely determined by the locations of the selected nearest nodes, and not affected by element shapes. Copyright © 2008 John Wiley & Sons, Ltd.
Quantitative measurement of Plasmodium‐infected erythrocytes in murine models of malaria by flow cytometry using bidimensional assessment of SYTO‐16 fluorescence
Authors: Jiménez‐Díaz María Belén , Mulet Teresa , Gómez Vanesa , Viera Sara , Alvarez Angela , Garuti Helena , Vázquez Yolanda , Fernández Alejandra , Ibáñez Javier , Jiménez Magdalena , Gargallo‐Viola Domingo , Angulo‐Barturen Iñigo 
Published: September 2008

AbstractFlow cytometry is a powerful tool for measuring parasitemias in murine malaria models used to test new antimalarials. Measurement of the emission of the nonpermeable nucleic acid dye YOYO‐1 (at 530 and 585 nm after excitation at 488 nm) allowed the unambiguous detection of low parasitemias (≥0.01%) but required prolonged fixation and permeabilization of the sample. Thus, we tested whether this issue could be overcome by use of the cell‐permeant dye SYTO‐16 with this same bidimensional method. Blood samples from CD1 mice infected with Plasmodium yoelii, Plasmodium vinckei, or Plasmodium chabaudi or from NODscidβ2m‐/‐ engrafted with human erythrocytes and infected with P. falciparum were stained with SYTO‐16 in the presence or absence of TER‐119 mAb (for engrafted mice) in 96‐well plate format and acquired in Trucount™ tubes. Bidimensional analysis with SYTO‐16 was quantitatively equivalent to YOYO‐1. Moreover, by combining SYTO‐16 with the use of TER‐119‐PE antimouse erythrocyte mAb and Trucount tubes, the measurement of the concentration of P. falciparum‐infected erythrocytes over a range of five orders of magnitude was achieved. Bidimensional analysis using SYTO‐16 can be used to accurately measure the concentration of Plasmodium spp.‐infected erythrocytes in mice without complex sample preparation. © 2008 International Society for Advancement of Cytometry
The Cochrane Library and Leukotriene Receptor Antagonists for Children with Asthma: An Overview of Reviews
Authors: Bjornson Candice L. , Russell Kelly , Plint Amy , Rowe Brian H. 
Published: September 2008

AbstractBackgroundAsthma is a common childhood disease characterised by chronic inflammation of the airways. One treatment option is the class of medications known as the leukotriene receptor antagonists (LTRAs). The use of LTRA in combination with inhaled corticosteroid (ICS) may improve asthma control by reducing mucus secretion, inflammation and bronchoconstriction via this alternate pathway.ObjectivesTo synthesise the evidence currently in The Cochrane Library Database Of Systematic Reviews (CDSR) related to the question, ‘In children with symptomatic but stable asthma, does treatment with a LTRA as a primary or add‐on therapy to ICS improve objective measures of lung function and asthma symptom control, reduce exacerbations, and improve quality of life compared to standard care?’MethodsCDSR was searched using the term ‘asthma’ in the title for all systematic reviews examining anti‐leukotriene agents vs any other pharmacological agent for the treatment of asthma. Data were extracted and entered into tables; data were synthesised using qualitative and quantitative methods.Main ResultsThree reviews were identified; however, only two reviews contained data in children. There was no significant difference in change in FEV1, number of missed school days, or the proportion of children requiring oral corticosteroid treatment, or proportion of children who experienced an asthma exacerbation requiring hospital admission among those randomised to LTRA vs ICS. The addition of LTRA treatment to ICS resulted in no significant difference in the change in FEV1 or morning PEFR, use of β2‐agonist rescue medication, proportion of children admitted to the hospital due to an asthma exacerbation, or quality of life.Authors' ConclusionsUntil further evidence is available for children, LTRAs should not be substituted for ICS as monotherapy and ICS should remain the first line therapy for children with asthma. Currently, there is insufficient evidence to conclude that anti‐leukotriene agents added to ICS therapy improves asthma control, steroid‐sparing effect, or improved quality of life. Future research should address the gaps in children, including those as young as 2 years of age. Copyright © 2008 The Cochrane Collaboration. Published by John Wiley & Sons, Ltd. The Cochrane Collaboration
Characteristics and key findings for ‘School‐based education programmes for the prevention of child sexual abuse’
Authors: van Dalen E. C. , Offringa M. 
Published: September 2008

AbstractThese are the characteristics and key findings for a Cochrane review published in this issue of EBCH, first published as: Zwi KJ, Woolfenden SR, Wheeler DM, O'Brein TA, Tait P, Williams KW. School‐based education programmes for the prevention of child sexual abuse. Cochrane Database of Systematic Reviews 2007, Issue 3. Art. No.: CD004380. DOI: 10.1002/14651858.CD004380.pub2.Further information for this Cochrane review is available in this issue of EBCH in the accompanying EBCH Commentary and Summary articles. Copyright © 2008 The Cochrane Collaboration. Published by John Wiley & Sons, Ltd. The Cochrane Collaboration
Commentary on ‘Cup feeding versus other forms of supplemental enteral feeding for newborn infants unable to fully breastfeed’
Authors: Hopkinson Judy , Revai Krystal 
Published: September 2008

AbstractThis is a commentary on a Cochrane review, published in this issue of EBCH, first published as: Flint A, New K, Davies NW. Cup feeding versus other forms of supplemental enteral feeding for newborn infants unable to fully breastfeed. Cochrane Database of Systematic Reviews 2007, Issue 2. Art. No.: CD005092. DOI:10.1002/14651858.CD005092.pub2.Further information for this Cochrane review is available in this issue of EBCH in the accompanying EBCH Summary and Characteristics and Key Findings Tables. Copyright © 2008 The Cochrane Collaboration. Published by John Wiley & Sons, Ltd. The Cochrane Collaboration
Commentary on ‘Selective serotonin reuptake inhibitors (SSRIs) for depressive disorders in children and adolescents’ with a response from the review authors
Authors: Dubicka Bernadka , Wilkinson Paul 
Published: September 2008

AbstractThis is a commentary on a Cochrane review, published in this issue of EBCH, first published as: Hetrick SE, Merry S, McKenzie J, Sindahl R, Protctor M. Selective serotonin reuptake inhibitors (SSRIs) for depressive disorders in children and adolescents. Cochrane Database of Systematic Reviews 2007, Issue 3. Art. No.: CD004851. DOI: 10.1002/14651858.CD004851.pub2.Further information for this Cochrane review is available in this issue of EBCH in the accompanying EBCH Summary and Characteristics and Key Findings Tables. Copyright © 2008 The Cochrane Collaboration. Published by John Wiley & Sons, Ltd. The Cochrane Collaboration
Commentary on ‘Elective high frequency oscillatory ventilation versus conventional ventilation for acute pulmonary dysfunction in preterm infants’
Authors: Eichenwald Eric C. , Stark Ann R. 
Published: September 2008

AbstractThis is a commentary on a Cochrane review, published in this issue of EBCH, first published as: Henderson‐Smart DJ, Cools F, Bhuta T, Offringa M. Elective high frequency oscillatory ventilation versus conventional ventilation for acute pulmonary dysfunction in preterm infants. Cochrane Database of Systematic Review 2007, Issue 3. Art. No. 2. CD000104.DOI: 10.1002/14651858.CD000104.pub2.Further information for thisCochrane review is available in this issue of EBCH in the accompanying EBCH Summary and Characteristics and Key Findings Tables. Copyright © 2008 The Cochrane Collaboration. Published by John Wiley & Sons, Ltd. The Cochrane Collaboration
Commentaries on ‘Vitamin C for preventing and treating the common cold’ with responses from the review author
Authors: Shamseer Larissa , Vohra Sunita , Bax Renske , Spee Leo , Madderom Marieke , Hemilä Harri 
Published: September 2008

AbstractThese are commentaries on a Cochrane review, published in this issue of EBCH, first published as: Douglas RM, Hemilä H, Chalker E, Treacy B. Vitamin C for preventing and treating the common cold. Cochrane Database of Systematic Reviews 2007, Issue 3. Art. No.: CD000980. DOI: 10.1002/14651858.CD000980. pub3.Further information for this Cochrane review is available in this issue of EBCH in the accompanying EBCH Summary and Characteristics and Key Findings Tables. Copyright © 2008 The Cochrane Collaboration. Published by John Wiley & Sons, Ltd. The Cochrane Collaboration
Summary of ‘Vitamin C for preventing and treating the common cold’
Authors: Milne Andrea 
Published: September 2008

AbstractThis is a summary of a Cochrane review, published in this issue of EBCH, first published as: Douglas RM, Hemilä H, Chalker E, Treacy B. Vitamin C for preventing and treating the common cold. Cochrane Database of Systematic Reviews 2007, Issue 3. Art. No.: CD000980. DOI: 10.1002/14651858.CD000980. pub3.Further information for this Cochrane review is available in this issue of EBCH in the accompanying EBCH Commentary and Characteristics and Key Findings Tables. Copyright © 2008 The Cochrane Collaboration. Published by John Wiley & Sons, Ltd. The Cochrane Collaboration
Reactivity of the Radical NO with a Masked Form of 14 Valence Electron (PNP)Rh: Forming Rh(0, I or II)?
Authors: Verat Alexander Y. , Pink Maren , Fan Hongjun , Fullmer Benjamin C. , Telser Joshua , Caulton Kenneth G. 
Published: September 2008

AbstractThe reaction of NO with [(tBu2PCH2SiMe2)NSiMe2CH2PtBu(CMe2CH2)]RhH, a functional equivalent of “(PNP)Rh,” rapidly forms (PNP)Rh(N2) and (PNP)Rh(NO)(NO2). Detected intermediates include (PNP)Rh(NO), characterized by its NMR, EPR and IR spectra as well as by DFT calculation, as having the neutral NO‐centered radical Lewis base donating to RhI. One other intermediate is detected, using a combination of spectroscopic and DFT methods, as containing a nitrite (O–N=O) ligand that is O‐bound to Rh, giving an overall Cs symmetry. The overall reaction is thus the disproportionation of NO catalyzed by RhI, and the reaction serves to produce nonradical products from radical NO. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)
Synthesis, Characterization, and cis–trans Isomerization Studies of cis‐[PdCl2{Ph2P(CH2CH2O)3CH2CH2PPh2‐P,P′}] and trans‐[PtCl2{Ph2P(CH2CH2O)3CH2CH2PPh2‐P,P′}] Metallacrown Ethers
Authors: Owens Samuel B. , Smith Dale C. , Lake Charles H. , Gray Gary M. 
Published: September 2008

AbstractThe metallacrown ether cis‐[PdCl2{Ph2P(CH2CH2O)3CH2CH2PPh2‐P,P′}] (cis‐1) has been kinetically trapped via precipitation during the reaction of PdCl2 and Ph2P(CH2CH2O)3CH2CH2PPh2 in an acetonitrile/THF mixture. The kinetics of the cis–trans isomerization and oligomerization equilibria of cis‐1 have been followed using quantitative 31P{1H} NMR spectroscopy. The reaction follows reversible first‐order kinetics, and an Eyring analysis was carried out to yield ΔH‡f (81 ± 2 kJ mol–1), ΔH‡r (46 ± 2 kJ mol–1), ΔS‡f (117 ± 4 J mol–1 K–1), and ΔS‡r (20 ± 6 J mol–1 K–1) for the isomerization reaction. The ΔH‡f is consistent with a proposed associative transition state involving partial cleavage of a Pd–P bond and partial formation of Pd–O(ether) bond to an adjacent ether oxygen. For comparison, trans‐[PtCl2{Ph2P(CH2CH2O)3CH2CH2PPh2‐P,P′}] (trans‐2) was isolated from a mixture of cis and trans isomers by column chromatography. An analysis of the isomerization process of trans‐2 to cis‐2 using quantitative 31P{1H} NMR spectroscopy revealed that no isomerization occurs at 348 K in the absence of an acid catalyst and that the acid‐catalyzed trans–cis isomerization is zero order in complex. Crystal structures of cis‐1, cis‐2, and trans‐2 are also presented, and the conformations of the metallacrown ether rings in these structures have been related to the data presented above. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)
Reactivity Towards Acidic Protic Ligands of Cyclopalladated Di‐μ‐hydroxo Complexes
Authors: Serrano José Luis , García Luis , Pérez José , Pérez Eduardo , García Joaquín , Sánchez Gregorio , López Gregorio , Liu Malva 
Published: September 2008

AbstractThe dinuclear hydroxo complexes [{Pd(μ‐OH)(C∧N)}2] [C∧N = 2‐(2‐pyridyl)phenyl (Phpy) (I), 7,8‐benzoquinolyl (Bzq) (II) and 2‐(2‐oxazolinyl)phenyl (Phox) (III)] react in a 1:2 molar ratio with a wide variety of protic electrophiles H(L∧L) bearing different sets of donor atoms (L∧L = O∧O or O∧N) to give the mononuclear neutral palladium(II) derivatives with the general formula [Pd(L∧L)(C∧N)] [O∧O = salicylaldehydate (sal) (1), acetylacetonate (acac) (2) and benzoylacetonate (bzac) (3); O∧N = N‐phenylsalicylaldiminate (N‐Phsal) (4), N‐p‐chlorophenylsalicylaldiminate (N‐pClPhsal) (5), 2‐pyrrolecarbaldeydate (2‐pcal) (6), 8‐hydroxyquinolinate (oxin) (7)]. Structural characterisation of complexes I1, I3, I6, II4, II5 and III5 by X‐ray diffraction confirmed the proposed formulae. Dinuclear complexes [{Pd(μ‐N∧S)(C∧N)}2] [N∧S = 2‐pyridinethiolate (spy)] (8) were obtained when treating complexes I–III with 2‐mercaptopyridine in the same molar ratio. A related process takes place when the three precursors react with ammonium O,O′‐diethyldithiophosphate under mild conditions and complexes [Pd{S(S)P(OEt)2}(C∧N)] (I9–III9) are obtained. Deprotonation of the secondary amine Et2NH by complexes I–III in the presence of carbon disulfideleads to the corresponding dithiocarbamate complexes [Pd(S2CNEt2)(C∧N)] (I10–III10). The new complexes were characterised by analytical and spectroscopic techniques (IR and 1H NMR).(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)
Boundary conditions at the interface between fluid layer and fibrous medium
Authors: Bai H. X. , Yu P. , Winoto S. H. , Low H. T. 
Published: September 2008

AbstractThe flow through a channel partially filled with fibrous porous medium was analyzed to investigate the interfacial boundary conditions. The fibrous medium was modeled as a periodic array of circular cylinders, in a hexagonal arrangement, using the boundary element method. The area and volume average methods were applied to relate the pore scale to the representative elementary volume scale. The permeability of the modeled fibrous medium was calculated from the Darcy's law with the volume‐averaged Darcy velocity. The slip coefficient, interfacial velocity, effective viscosity and shear jump coefficients at the interface were obtained with the averaged velocities at various permeabilities or Darcy numbers. Copyright © 2008 John Wiley & Sons, Ltd.
Comparing the DSGE model with the factor model: an out‐of‐sample forecasting experiment
Authors: Wang Mu‐Chun 
Published: September 2008

AbstractIn this paper, we put dynamic stochastic general equilibrium DSGE forecasts in competition with factor forecasts. We focus on these two models since they represent nicely the two opposing forecasting philosophies. The DSGE model on the one hand has a strong theoretical economic background; the factor model on the other hand is mainly data‐driven. We show that incorporating a large information set using factor analysis can indeed improve the short‐horizon predictive ability, as claimed by many researchers. The micro‐founded DSGE model can provide reasonable forecasts for US inflation, especially with growing forecast horizons. To a certain extent, our results are consistent with the prevailing view that simple time series models should be used in short‐horizon forecasting and structural models should be used in long‐horizon forecasting. Our paper compares both state‐of‐the‐art data‐driven and theory‐based modelling in a rigorous manner. Copyright © 2008 John Wiley & Sons, Ltd.