bluuebunny/crossref_metadata_2025_split huggingface dataset:
Adenovirus‐mediated retrograde transfer of neurotrophin‐3 gene enhances survival of anterior horn neurons of twy/twy mice with chronic mechanical compression of the spinal cord
Authors: Uchida Kenzo , Nakajima Hideaki , Inukai Tomoo , Takamura Takaharu , Kobayashi Shigeru , Furukawa Shoei , Baba Hisatoshi 
Published: February 2008

AbstractChronic mechanical compression of the spinal cord causes neural tissue damage, including loss of anterior horn cells around the level of injury. Exogenous delivery of neurotrophins to neuronal cells could provide neuroprotection to a spinal cord subjected to mechanical injury. We investigated the efficacy of retrograde gene delivery of adenoviral vector (AdV) carrying neurotrophin‐3 (NT‐3) gene into twy (twy/twy) mouse spinal cord anterior horn neurons with chronic and progressive mechanical compression at C1‐C2 level. AdV‐NT‐3 was used for retrograde delivery via the sternomastoid muscle to the cervical spinal accessory motoneurons in 16‐week‐old adult twy mice with relatively mild spinal cord compression. Four weeks after the AdV‐NT‐3 or AdV‐β‐galactosidase cDNA (LacZ) as a marker gene injection, the compressed cervical spinal cord was examined histologically, immunohistologically, and by immunoblot analysis. Immunoreactivity to NT‐3 was significantly enhanced in the AdV‐NT‐3‐injected twy mice compared with the AdV‐LacZ‐injected mice. The numbers of anterior horn neurons of Nissl‐, choline acetyltransferase (ChAT)‐, and trkC‐stained and wheat germ agglutinin‐horseradish peroxidase (WGA‐HRP)‐labeled neurons at the spinal cord level with maximum compression were significantly higher in AdV‐NT‐3‐transfected than in AdV‐LacZ‐transfected twy mice. Retrograde NT‐3 gene transfer to twy mouse anterior horn neurons increased neurite axonal length and arborization of WGA‐HRP‐labeled neurons. Our results suggest that targeted retrograde NT‐3 gene delivery is feasible in the intact animal and that it enhances neuronal survival even under chronic mechanical compression of the spinal cord. © 2008 Wiley‐Liss, Inc.
Raman spectra of crystalline iron perchlorate hexahydrate
Authors: Chiang D. P. , Peng C. H. , Mei J. K. , Jiang I. M. , Lin S. C. , Chen Y. C. , Liu H. T. , Chen Y. F. , Tse W. S. 
Published: February 2008

AbstractRaman studies of crystalline iron perchlorate hexahydrate (Fe(ClO4)2·6H2O) in the region of lattice and anion internal modes were carried out in the temperature range 80–385 K. The temperature‐dependent Raman results are consistent with those from previous works, showing that two phase transitions occur around 336 and 245 K. The transition at 336 K may be considered as an order–disorder transformation, while the one at 245 K is associated with the configurational disorder of the tetrahedron of the perchlorate ions. Copyright © 2008 John Wiley & Sons, Ltd.
Lithium solvation and diffusion in the 1‐butyl‐3‐methylimidazolium bis(trifluoromethanesulfonyl)imide ionic liquid
Authors: Duluard Sandrine , Grondin Joseph , Bruneel Jean‐Luc , Pianet Isabelle , Grélard Axelle , Campet Guy , Delville Marie‐Hélène , Lassègues Jean‐Claude 
Published: February 2008

AbstractThe Raman spectra of (1 − x)(BMITFSI), xLiTFSI ionic liquids, where 1‐butyl‐3‐methylimidazolium cation (BMI+) and bis(trifluoromethane‐sulfonyl)imide anion (TFSI−) are analyzed for LiTFSI mole fractions x < 0.4. As expected from previous studies on similar TFSI‐based systems, most lithium ions are shown to be coordinated within [Li(TFSI)2]− anionic clusters. The variation of the self‐diffusion coefficients of the 1H, 19F, and 7Li nuclei, measured by pulsed‐gradient spin‐echo NMR (PGSE‐NMR) as a function of x, can be rationalized in terms of the weighted contribution of BMI+ cations, TFSI− ‘free’ anions, and [Li(TFSI)2]− anionic clusters. This implies a negative transference number for lithium. Copyright © 2008 John Wiley & Sons, Ltd.
Raman and infrared spectroscopic study of the molybdate‐containing uranyl mineral calcurmolite
Authors: Frost Ray L. , Čejka Jiří , Dickfos Marilla J. 
Published: February 2008

AbstractRaman and infrared spectra of calcurmolite were recorded and interpreted from the uranium and molybdenum polyhedra, water molecules and hydroxyls point of view. UO bond lengths in uranyl and MoO bond lengths in MoO6 octahedra were calculated and OH…O bond lengths were inferred from the spectra. The mineral calcurmolite is characterised by bands assigned to the vibrations of the UO2 units. These units provide intense Raman bands at 930, 900 and 868 and 823 cm−1. These bands are attributed to the anti‐symmetric and symmetric stretching modes of the UO2 units, respectively. Raman bands at 794, 700, 644, 378 and 354 cm−1 are attributed to vibrations of the MoO4 units. The bands at 693 and 668 cm−1 are assigned to the anti‐symmetric and symmetric Ag modes of the terminal MO2 units. Similar bands are observed at 797 and 773 cm−1 for koechlinite and 798 and 775 cm−1 for lindgrenite. It is probable that some of the bands in the low wavenumber region are attributable to the bending modes of MO2 units. Copyright © 2008 John Wiley & Sons, Ltd.
Analysis of primary aromatic amines using precolumn derivatization by HPLC fluorescence detection and online MS identification
Authors: Zhao Xianen , Suo Yourui 
Published: February 2008

Abstract2‐(2‐Phenyl‐1H‐phenanthro‐[9,10‐d]imidazole‐1‐yl)‐acetic acid (PPIA) and 2‐(9‐acridone)‐acetic acid (AAA), two novel precolumn fluorescent derivatization reagents, have been developed and compared for analysis of primary aromatic amines by high performance liquid chromatographic fluorescence detection coupled with online mass spectrometric identification. PPIA and AAA react rapidly and smoothly with the aromatic amines on the basis of a condensation reaction using 1‐ethyl‐3‐(3‐dimethylaminopropyl)‐carbodiimide (EDC) as dehydrating catalyst to form stable derivatives with emission wavelengths at 380 and 440 nm, respectively. Taking six primary aromatic amines (aniline, 2‐methylaniline, 2‐methoxyaniline, 4‐methylaniline, 4‐chloroaniline, and 4‐bromoaniline) as testing compounds, derivatization conditions such as coupling reagent, basic catalyst, reaction temperature and time, reaction solvent, and fluorescent labeling reagent concentration have also been investigated. With the better PPIA method, chromatographic separation of derivatized aromatic amines exhibited a good baseline resolution on an RP column. At the same time, by online mass spectrometric identification with atmospheric pressure chemical ionization (APCI) source in positive ion mode, the PPIA‐labeled derivatives were characterized by easy‐to‐interpret mass spectra due to the prominent protonated molecular ion m/z [M + H]+ and specific fragment ions (MS/MS) m/z 335 and 295. The linear range is 24.41 fmol–200.0 pmol with correlation coefficients in the range of 0.9996–0.9999, and detection limits of PPIA‐labeled aromatic amines are 0.12–0.21 nmol/L (S/N = 3). Method repeatability, precision, and recovery were evaluated and the results were excellent for the efficient HPLC analysis. The most important argument, however, was the high sensitivity and ease‐of‐handling of the PPIA method. Preliminary experiments with wastewater samples collected from the waterspout of a paper mill and its nearby soil where pollution with aromatic amines may be expected show that the method is highly validated with little interference in the chromatogram.
Consumers' waiting in queues: The role of first‐order and second‐order justice
Authors: Zhou Rongrong , Soman Dilip 
Published: February 2008

AbstractPast research on queuing has identified social justice as an important determinant of consumers' waiting experiences. In queuing settings, people's perception of social justice is affected by whether the principle of first in and first out (FIFO) has been violated. However, even when service follows the FIFO principle, waiting time may still differ from one consumer to another for various reasons. For instance, a consumer who happens to arrive in the queue after a large group of people may have to wait longer than average. In this research, it is argued that, aside from and independent of the FIFO principle, consumers also care about whether everyone spends an approximately equal amount of time waiting before availing of the product or service. When consumers perceive that they have spent more time waiting than others and when they can attribute this injustice to the service provider, they will be less satisfied with the waiting experience. It is also proposed that adherence to the FIFO principle is a more salient concern to consumers (thus termed “first‐order” justice), and equal waiting time (”second‐order” justice) matters only when first‐order justice is not an issue. Three studies support the predictions. © 2008 Wiley Periodicals, Inc.
The effectiveness of nonverbal symbolic signs and metaphors in advertisements: An experimental inquiry
Authors: DeRosia Eric D. 
Published: February 2008

AbstractThis research investigates the effectiveness of nonverbal symbolic signs and rhetorical metaphors in advertisements. Hypotheses are made based on appeals to both interpretive and psychological theoretical perspectives. In contrast to previous research that has assumed nonverbal ad elements are effortlessly and automatically processed, it is proposed here that consumers must devote a nontrivial level of cognitive effort if they are to comprehend nonverbal symbolic signs and metaphors. The hypotheses suggest boundary conditions for the effectiveness of nonverbal elements in advertising. An experiment is conducted as a test of the hypotheses, and the observations support the hypotheses. © 2008 Wiley Periodicals, Inc.
Aniline Oligomers – Architecture, Function and New Opportunities for Nanostructured Materials
Authors: Wei Zhixiang , Faul Charl F. J. 
Published: February 2008

AbstractIn this mini review, we strive to highlight the opportunities that exist for the use of aniline oligomeric species in functional materials by reviewing the current state‐of‐the‐art of the various synthetic strategies, as well as the growing number of publications where more complex block‐like architectures have been shown. Areas for further investigation and possible future development are highlighted as well.magnified image
Accurate Prediction of θ (Lower Critical Solution Temperature) in Polymer Solutions Based on 3D Descriptors and Artificial Neural Networks
Authors: Xu Jie , Chen Biao , Liang Hao 
Published: February 2008

AbstractQuantitative structure‐property relationships were studied between descriptors representing the three‐dimensional structures of molecules and θ (LCST, lower critical solution temperature) in polymer solutions with a database of 169 data containing 12 polymers and 67 solvents. Feed‐forward artificial neural networks (ANNs) combined with stepwise multilinear regression analysis (MLRA) were used to develop the models. With ANNs, the squared correlation coefficient (R2) for θ (LCST) of the training set of 112 systems is 0.9625, the standard error of estimation (SEE) is 13.43 K, and the mean relative error (MRE) is 1.99%; in prediction of θ (LCST) using the test set of 57 systems, the MRE is 2.26%. With MLRA, the MREs for the training and test sets are 4.02% (R2 = 0.8739, SEE = 25.88 K) and 5.05%, respectively.magnified image
Investigation into the onset and progression of transplant arteriosclerosis in a mice aortic retransplantation model
Authors: Steger Ulrich , Ensminger Stephan , Bushell Andrew , Wood Kathryn J. 
Published: February 2008

AbstractLong‐term function of vascularized human organ grafts is often limited by transplant arteriosclerosis and can lead to graft failure. Here, we have analyzed the impact of an initial rejection episode on the later development of transplant arteriosclerosis. Following transplantation of allogeneic abdominal aortic segments in mice, aortic grafts were retransplanted into either immunodeficient or syngeneic recipients. Retransplantation of grafts from immunocompetent into immunodeficient mice as early as 2 days after the primary transplant resulted in intimal proliferation and obstruction of the graft lumen 30 days after the primary transplantat. In contrast, retransplantation of the grafts into donor syngeneic B10 recipients within 7 days did not result in the development of transplant arteriosclerosis. These data suggest that the adaptive immune system can induce intimal proliferation by an initial lethal hit that is sustained by the innate response. However our data demonstrate that development of chronic rejection can be inhibited, in this case by retransplantation into a syngeneic host. © 2008 Wiley‐Liss, Inc. Microsurgery, 2008.
On a model for electromagnetic processes inside and outside a ferromagnetic body
Authors: Brokate Martin , Eleuteri Michela , Krejčí Pavel 
Published: February 2008

AbstractOne‐dimensional Maxwell's equations are considered in a ferromagnetic body surrounded by vacuum. Existence and uniqueness of solution for the resulting system of partial differential equations with hysteresis on the whole real line is proved under suitable constitutive hypotheses. Copyright © 2008 John Wiley & Sons, Ltd.
The fractal finite element method for added‐mass‐type problems
Authors: Leung A. Y. T. , Fok A. S. L. , Dai H. , Su R. K. L. 
Published: February 2008

AbstractThe fractal finite element method (FFEM), originally developed for calculating stress intensity factors in fracture mechanics problems, has been extended to analyse fluid–structure interaction in the form of added‐mass‐type problems. These include the free vibration of a submerged spherical shell and the interaction between a dam and a reservoir. For the former problem, the numerical solution from the FFEM agrees well with the analytical solution, and the FFEM performed better than conventional finite elements and infinite elements in terms of efficiency. For the latter problem, the FFEM predicted an added mass profile that is different from that based on Westergaard's parabolic solution. Copyright © 2008 John Wiley & Sons, Ltd.
Cell processing on polyimide surface patterned by rubbing
Authors: Matsumoto Norihiro , Hiruma Hitomi , Nagaoka Shoji , Fujiyama Koutarou , Kaneko Arata , Kawakami Hiroyoshi 
Published: February 2008

AbstractIn this study, we prepared a novel rubbed fluorinated polyimide film using a rubbing machine with a rubbing cloth and determined the surface properties of the rubbed film using an atomic force microscope and contact angle measurements. In addition, we evaluated the cell adhesion behavior on the rubbed polyimide film using a phase contrast microscope. Interestingly, a rubbed polyimide surface having a micrometer‐scale grooved pattern was prepared by the rubbing method, and the morphologies of rat primary hepatocytes and human liver cell lines attached to the rubbed surface were three‐dimensional multicellular spheroids, while the cells on an unrubbed surface showed two‐dimensional monolayers. This initial study indicates that the rubbing method without any chemical modification is simple and can easily produce large surface areas, suggesting that the rubbing may become a novel cell culture method. Copyright © 2008 John Wiley & Sons, Ltd.
Myelofibrosis in a patient with familial hemophagocytic lymphohistiocytosis
Authors: Friedman Gregory K. , Hammers Yuki , Reddy Vishnu , Pressey Joseph G. 
Published: February 2008

AbstractWe report a unique case of primary hemophagocytic lymphohistiocytosis (HLH) detected in an infant who had bone marrow biopsies demonstrating myelofibrosis, a finding not previously reported in primary HLH. Pediatr Blood Cancer 2008;50:1260–1262. © 2008 Wiley‐Liss, Inc.
Prenatal magnetic resonance imaging of optic nerve head coloboma
Authors: Righini Andrea , Avagliano Laura , Doneda Chiara , Pinelli Lorenzo , Parazzini Cecilia , Rustico Mariangela , Triulzi Fabio , Bulfamante Gaetano 
Published: February 2008

AbstractObjectiveCongenital optic nerve head coloboma represents an important cause of childhood visual impairment and blindness; it can be isolated or, more often, it can be associated with several syndromes. Ultrasound has limitations in depicting the posterior aspect of the fetal eye globe, so prenatal information about ocular coloboma are very scarce. The purpose of this paper was to report prenatal magnetic resonance (MR) imaging features of optic nerve head coloboma.MethodsMR imaging at 1.5 Tesla was based on multiplanar single‐shot fast spin‐echo T2‐weighted 3–4 mm thick contiguous sections.ResultsThree fetal cases with optic nerve head coloboma and one with microphthalmos and colobomatous cyst are reported. Coloboma appeared as a focal bulging of ocular globe profile at the insertion of optic nerve.ConclusionPrenatal MR imaging allowed an accurate diagnosis to be obtained. Copyright © 2008 John Wiley & Sons, Ltd.
Genetic insights into bipolar disease
Authors: Greener Mark 
Published: February 2008

AbstractGenetic studies will enhance clinicians' and researchers' understanding of the pathophysiology of bipolar disease. Genetic studies will also improve the efficacy and reduce the toxicity associated with current medications, while raising the prospect of new treatments for this often‐devastating disease. Professor David Collier, from the Institute of Psychiatry in London, made these predictions during his lecture at the 6th LatestAdvances in Psychiatry Symposium held in London inApril 2007.Medical writer,Mark Greener,reports. Copyright © 2008 Wiley Interface Ltd
Networks and conetworks of PIB‐based cyanoacrylate‐telechelic prepolymers: Synthesis, characterization, and properties
Authors: Jewrajka Suresh K. , Kennedy J. P. 
Published: February 2008

AbstractNovel networks and conetworks were prepared by the instantaneous polymerization of cyanoacrylate‐telechelic three‐arm star polyisobutylene [Ø(PIB‐CA)3] and the copolymerization of Ø(PIB‐CA)3/2,4,4‐trimethylpentane cyanoacrylate (TMP‐CA) mixtures, respectively, by means of strong nucleophiles, such as NEt2‐telechleic linear or three‐arm star PIBs [Ø(PIB‐NEt2)2 or 3]. The reactants were combined in the bulk in double‐barrel syringes by reaction injection molding (RIM). The chemical and mechanical properties of products prepared in the bulk and by conventional solution techniques were characterized by various techniques (swelling, extractables, FTIR and NMR spectroscopies, Instron, microhardness, oxidative resistance, DSC, DMTA). Conditions for the preparation of rubbery materials for possible biomedical applications were developed. © 2008 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 46: 2612–2623, 2008
1‐Amino‐1‐hydrazo‐2,2‐dinitroethene – a Hazard Warning
Authors: Bellamy Anthony J. , Contini Alessandro E. , Latypov Nikolaj V. 
Published: February 2008

Abstract1‐Amino‐1‐hydrazo‐2,2‐dinitroethene (2) has been observed to spontaneously decompose with considerable violence during storage. Its preparation and handling should be regarded as potentially hazardous.
Temperature‐dependent Raman scattering of natural and isotopically substituted PbS
Authors: Etchegoin P. G. , Cardona M. , Lauck R. , Clark R. J. H. , Serrano J. , Romero A. H. 
Published: February 2008

AbstractLead sulfide is an important semiconductor that has found technological applications for over a century. Raman spectroscopy, a standard tool for the investigation and characterization of semiconductors, has limited application to this material because of the forbidden nature of its first order scattering and its opacity to visible lasers. Nevertheless, useful vibrational spectra from two‐phonon processes are obtained with red lasers, probably because of a resonance in the concomitant electronic transitions. Herewith, we report temperature dependent Raman spectra covering the 10–300 K range, for two samples with different sulfur isotopic compositions. The results are analyzed by comparison with ab initio cal‐ culations of the lattice dynamics of PbS and the corresponding densities of one and two‐phonon states. Emphasis is placed on the analysis of the two phonon band centered at ∼430 cm–1. The combined use of ab initio calculations and an extended temperature range (compared to previous reports) allows an unequivocal identification of some of the main features in the second‐order Raman spectra. Our study also provides a much firmer background for the understanding of anomalous temperature dependences in the anharmonic shifts of second‐order Raman spectra in PbS. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Speciation of iron and sulphur in seasonal layers of varved lake sediment: an XPS study
Authors: Shchukarev Andrey , Gälman Veronika , Rydberg Johan , Sjöberg Staffan , Renberg Ingemar 
Published: February 2008

AbstractUnder specific conditions, annually‐laminated (varved) sediments are formed in lakes. Such lake sediments are rare, but of great interest to studies of past environmental conditions since they provide annual or even seasonal time resolution, and can be used to follow environmental changes over hundreds or thousands of years. The chemical composition of the varves and speciation of chemical elements reveal information on past conditions. The colour of sediment varves can vary between light brown to almost black, and it was hypothesised that black layers were deposited in seasons with oxygen deficit in the hypolimnion (summer and winter) and light layers were formed at spring and autumn over‐turn periods when oxygen‐rich water flow occurred near the lake bottom. We have tested this hypothesis by analyses of seasonal layers of varves formed in 1968 and 2005 using X‐ray photoelectron spectroscopy with fast‐frozen samples. We found that the organic (C, N, O, S) and inorganic (Al, Si, Ca, Fe, S) elemental composition was similar for all samples studied, but the chemical states of iron and sulphur differed remarkably depending on the season. The black colour of the summer layer was caused by the precipitation of inorganic FeS, while in the light layers only organic thiol (SH) and sulphate SO42− together with Fe(III) hydroxides were found. Copyright © 2008 John Wiley & Sons, Ltd.
Study of the initial oxidation characteristics of uranium with pure oxygen below 100 °C by spectroscopic ellipsometry
Authors: Lin Siqin , Lai Xinchun , Lv Xuechao , Zhang Houliang 
Published: February 2008

AbstractIn this work, the initial oxidation characteristics of uranium with pure oxygen was studied by spectroscopic ellipsometry. The samples used in experiments were depleted uranium, which were finely polished before experiments. In the study the surface of the uranium was sputtered to clean in vacuum by Ar+ gun firstly, and then n and k values of pure metallic uranium were measured within wavelength range 350–1000 nm. The series experiments were done by introducing oxygen into vacuum chamber to a pressure of 5000 Pa while the samples were under various temperatures (45, 65, 85, and 95 °C), and the thickness of the surface oxidation film with time was obtained by spectroscopic ellipsometry under these conditions in situ. The results show that the oxidation process obeys the parabolic kinetics, which indicates that the reaction is controlled by oxygen diffusion. The reaction constants at these temperatures (45, 65, 85, and 95 °C) under 5000 Pa were calculated from experimental results, which depended obviously on temperature. From calculation, the activation energy is 73.7 kJ mol−1 for uranium below 100 °C at oxygen pressure 5000 Pa. Our study showed that spectroscopic ellipsometry is suitable for studying uranium oxidation at initial stage. Copyright © 2008 John Wiley & Sons, Ltd.