bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effects of conditional parameterization on performance of rainfall‐runoff model regarding hydrologic non‐stationarity
Authors: Luo Jiangmei , Wang Enli , Shen Shuanghe , Zheng Hongxing , Zhang Yongqiang 
Published: November 2011

AbstractBetter parameterization of a hydrological model can lead to improved streamflow prediction. This is particularly important for seasonal streamflow forecasting with the use of hydrological modelling. Considering the possible effects of hydrologic non‐stationarity, this paper examined ten parameterization schemes at 12 catchments located in three different climatic zones in east Australia. These schemes are grouped into four categories according to the period when the data are used for model calibration, i.e. calibration using data: (1) from a fixed period in the historical records; (2) from different lengths of historical records prior to prediction year; (3) from different climatic analogue years in the past; and (4) data from the individual months. Parameterization schemes were evaluated according to model efficiency in both the calibration and verification period. The results show that the calibration skill changes with the different historic periods when data are used at all catchments. Comparison of model performance between the calibration schemes indicates that it is worth calibrating the model with the use of data from each individual month for the purpose of seasonal streamflow forecasting. For the catchments in the winter‐dominant rainfall region of south‐east Australia, a more significant shift in rainfall‐runoff relationships at different periods was found. For those catchments, model calibration with the use of 20 years of data prior to the prediction year leads to a more consistent performance. Copyright © 2011 John Wiley & Sons, Ltd.
On the classification of weighing matrices and self‐orthogonal codes
Authors: Harada Masaaki , Munemasa Akihiro 
Published: November 2011

AbstractWe provide a classification method of weighing matrices based on a classification of self‐orthogonal codes. Using this method, we classify weighing matrices of orders up to 15 and order 17, by revising some known classification. In addition, we give a revised classification of weighing matrices of weight 5. A revised classification of ternary maximal self‐orthogonal codes of lengths 18 and 19 is also presented. © 2011 Wiley Periodicals, Inc. J Combin Designs 20:40–57, 2012
Reversible and DRAD difference sets in
Authors: Webster Jordan D. 
Published: November 2011

AbstractThe existence of Hadamard difference sets has been a central question in design theory. Reversible difference sets have been studied extensively. Dillon gave a method for finding reversible difference sets in groups of the form (C)2. DRAD difference sets are a newer concept. Davis and Polhill showed the existence of DRAD difference sets in the same groups as Dillon. This article determines the existence of reversible and DRAD difference sets in groups of the form (C)3. These are the only abelian 2‐groups outside of direct products of C4 and (C)2 known to contain reversible and DRAD difference sets. © 2011 Wiley Periodicals, Inc. J Combin Designs 20:58–67, 2012
Perineural cysts resembling complex cystic adnexal masses on transvaginal sonography
Authors: Saboo Sachin S. , Di Salvo Donald 
Published: November 2011

AbstractPerineural cysts may be discovered incidentally on pelvic sonography and can easily mimic more common gynecologic masses. We report the complex cystic adnexal mass like appearance of these incidentally noted cysts which mimicked malignancy on sonography in a postmenopausal female, with stage I breast cancer and vaginal spotting. © 2011 Wiley Periodicals, Inc. J Clin Ultrasound 2013
Repeatability and reproducibility of ultrasonographic measurement of carotid intima thickness
Authors: Lau Kar‐Ho , Fung Ying‐Keung , Cheung Yuk‐Ting , Tsang Wing‐Keung , Ying Michael 
Published: November 2011

AbstractPurpose.To evaluate the repeatability and reproducibility of intima thickness (IT) measurements at different sites along the common carotid artery and compare with intima–media thickness (IMT) measurements.Methods.Ultrasound examinations of common carotid artery were performed in 30 healthy subjects and 20 patients with diabetes mellitus. Carotid IT and IMT were measured at 10 mm, 13 mm, and 16 mm upstream from the carotid bulb. Each subject was scanned by three operators to evaluate inter‐operator reproducibility. Each operator scanned the subjects twice to evaluate intra‐operator repeatability. Inter‐equipment reproducibility of the measurements was evaluated.Results.The inter‐operator reproducibility for measuring carotid IT at the three sites was 81.5%, 81.9% and 69.1%, respectively, slightly lower than carotid IMT measurement (89.7%, 86.5%, 75.2%, respectively). The intra‐operator repeatability for carotid IT measurement at the three sites ranged 76.9–89.5%, 67.4–90.3%, and 55.2–70.5%, respectively, and was lower than for IMT measurement (86.5–96.9%, 87.6–95.7%, 79.9–86.5%, respectively). The inter‐equipment reproducibility of IMT (75.7–86.6%) was slightly better than for IT measurement (71.4–75.9%).Conclusions.Ultrasonographic measurement of carotid IT is repeatable and reproducible, although not as good as IMT. Measurements preformed 10 mm to 13 mm upstream from the carotid bulb yield more repeatable and reproducible results. © 2011 Wiley Periodicals, Inc. J Clin Ultrasound 40:79–84, 2012
On the hamiltonicity of line graphs of locally finite, 6‐edge‐connected graphs
Authors: Brewster Richard C. , Funk Daryl 
Published: November 2011

AbstractThe topological approach to the study of infinite graphs of Diestel and KÜhn has enabled several results on Hamilton cycles in finite graphs to be extended to locally finite graphs. We consider the result that the line graph of a finite 4‐edge‐connected graph is hamiltonian. We prove a weaker version of this result for infinite graphs: The line graph of locally finite, 6‐edge‐connected graph with a finite number of ends, each of which is thin, is hamiltonian.
Synthesis and biological activities of some new thiazolidine derivatives containing pyrazole ring system
Authors: Nishida Sho , Maruoka Hiroshi , Yoshimura Yuki , Goto Takao , Tomita Ryoko , Masumoto Eiichi , Okabe Fumi , Yamagata Kenji , Fujioka Toshihiro 
Published: November 2011

AbstractAs a part of systematic investigation of synthesis and biologically active compounds of thiazolidine (TZD) derivatives containing pyrazole ring system, several new pyrazole–TZD derivatives 8a, 8b, 8c, 8d and 9a, 9b, 9c, 9d have been synthesized. Compounds 8a, 8b, 8c, 8d were prepared from N‐substituted TZDs 6a, 6b, 6c, 6d and 1H‐pyrazole‐4‐carboxaldehyde 7 by Knoevenagel‐type reaction. Treatment of 8a, 8b, 8c, 8d with sodium hydride at room temperature caused dimerization reaction to afford the corresponding spirocompounds 9a, 9b, 9c, 9d. All the synthesized compounds were characterized by spectroscopic analysis. In vitro, the synthesized compounds 8a, 8b, 8c, 8d and 9a, 9b, 9c, 9d were tested for their growth inhibitory activity in A549 lung cancer, B16F10 murine melanoma, and HeLa human uterine carcinoma cells and for their differentiation of 3T3‐L1 preadipocytes to adipocytes. The results showed that compound 8c possessed growth inhibitory effect of B16F10 cells (IC50 = 27 μM) and compounds 9c, 9d had induction effect on the differentiation of 3T3‐L1 preadipocytes. J. Heterocyclic Chem., (2011).
Fast estimation of RL‐loaded microelectronic interconnections delay for the signal integrity prediction
Authors: Ravelo Blaise , Eudes Thomas 
Published: November 2011

SUMMARYThis article presents a modelling method of the signal delays induced by microelectronic interconnections regarding RL impedance load. The method proposed is based on the RLC model of the transmission lines (TL) extracted from the equivalent S parameters. Formulation for estimating the interconnection propagation delay is established according to the behaviour of the TL unit step responses. The second order model is validated with a microstrip interconnect prototype with simulations and measurements in frequency and time domains. The developed propagation delay model was validated with SPICE computations. For that, a transient simulation was performed by considering input signals corresponding to high‐speed data of some Gbits/s. Then, accurate results were found for interconnections with different lengths in order of millimetre and also by varying the load values. It was shown that the computed 50% propagation delays present of relative errors about 5%. Copyright © 2011 John Wiley & Sons, Ltd.
Arsenic mobilization in rice (Oryza sativa) and its accumulation in the grains
Authors: Bogdan Katja , Schenk Manfred K. 
Published: November 2011

AbstractFlooded rice (Oryza sativa L.) may contain high arsenic (As) concentrations compared to other grain crops. For the development of measures to reduce the As concentration of rice grains, knowledge about the mobility of As within the rice plant is required. Therefore, to investigate the mobilization of As within the plant, rice was grown in nutrient solution and exposed to As either before flowering, after flowering, or continuously until maturity. Furthermore, rice was grown in four soils under greenhouse and field conditions and the time course of As accumulation in grains during the grain‐filling period was investigated. When grown in nutrient solution, As removal at flowering did not reduce As concentrations in polished rice compared to plants supplied with As continuously or after flowering. Plants that received As only after flowering had the same As concentrations in shoot and bran as plants receiving As only before flowering. However, continuous As supply resulted in doubling of As concentrations in both plant parts. In contrast to grain and shoot, the As concentration in the root decreased after As removal compared to the treatments receiving As only after flowering or continuously. The observations indicate that As was mobilized from root or shoot to the grain and that it was accumulated in the grain, although it was not available in nutrient solution during the grain‐filling period. In soil experiments, the 1000‐grain weight increased up to 2 weeks before harvest in the field as well as in the greenhouse. The As concentration in rice grain was constant during the whole grain‐filling period. It was at a similar level under field and greenhouse conditions, and its variation among soils was in the same order indicating that soil was the decisive factor for As concentration in grains. Our results suggest that temporary cultural measures during the cultivation period, for example drainage, might be ineffective because of the mobilization capacity within the rice plant. Moreover, harvest before final maturity of grains would not reduce the As concentration since it remained constant during the grain‐filling period.
A qualitative study of U.S. veterans' reasons for seeking Department of Veterans Affairs disability benefits for posttraumatic stress disorder
Authors: Sayer Nina A. , Spoont Michele , Murdoch Maureen , Parker Louise E. , Hintz Samuel , Rosenheck Robert 
Published: November 2011

AbstractPosttraumatic stress disorder (PTSD) is the most prevalent compensable mental disorder within the U.S. Department of Veterans Affairs disability system and the number of veterans with PTSD service‐connected disability has increased steadily over the past decade. An understanding of the reasons veterans apply for PTSD disability status may inform interpretation of this increase and policies and interventions to assist veterans with military‐related PTSD. The authors conducted an exploratory qualitative study to describe the reasons veterans seek PTSD disability benefits and explored differences between those who served in different military service eras. They gathered data through in‐depth interviews with 44 purposefully selected U.S. veterans, and conducted content analysis of transcribed interviews using inductive and deductive analysis with constant comparison. Participants described 5 interrelated categories of reasons for seeking PTSD disability benefits, including 3 internal factors (tangible need, need for problem identification or clarification, beliefs that justify/legitimize PTSD disability status) and 2 external factors (encouragement from trusted others and professional assistance). There were no major differences by service era. Findings may help policy makers, providers, and researchers understand what veterans hope to achieve through PTSD disability and the instrumental role of social networks and government systems in promoting the pursuit of PTSD disability status.
Enhanced Biomimetic Performance of Ionic Polymer–Metal Composite Actuators Prepared with Nanostructured Block Ionomers
Authors: Vargantwar Pruthesh H. , Roskov Kristen E. , Ghosh Tushar K. , Spontak Richard J. 
Published: November 2011

AbstractIonic polymer–metal composites (IPMCs) represent an important class of stimuli‐responsive polymers that are capable of bending upon application of an electric potential. Conventional IPMCs, prepared with Nafion and related polyelectrolytes, often suffer from processing challenges, relatively low actuation levels and back relaxation during actuation. In this study, we examine and compare the effects of fabrication and solvent on the actuation behavior of a block ionomer with a sulfonated midblock and glassy endblocks that are capable of self‐organizing and thus stabilizing a molecular network in the presence of a polar solvent. Unlike Nafion, this material can be readily dissolved and cast from solution to yield films that vary in thickness and exhibit enormous solvent uptake. Cycling the initial chemical deposition of Pt on the surfaces of swollen films (the compositing process) increases the extent to which the electrodes penetrate the films, thereby improving contact along the polymer/electrode interface. The maximum bending actuation measured from IPMCs prepared with different solvents is at least comparable, but is often superior, to that reported for conventional IPMCs, without evidence of back relaxation. An unexpected characteristic observed here is that the actuation direction can be solvent regulated. Our results confirm that this block ionomer constitutes an attractive alternative for use in IPMCs and their associated applications.
Synthesis of Clicked Imidazolium‐Containing Biosourced Copolymers and Application in Carbon Nanotube Dispersion
Authors: Mincheva Rosica , Meyer Franck , Verge Pierre , Raquez Jean‐Marie , Billiet Leen , Du Prez Filip , Dubois Philippe 
Published: November 2011

AbstractNew polyesters incorporating a variable quantity of imidazolium rings along the backbone are synthesized by Huisgen 1,3‐dipolar cycloaddition (“click” reaction). Subsequently, the imidazolium‐grafted copolymers reveal an efficient dispersing ability toward the carbon nanotubes (CNTs) through supramolecular interactions in organic media. Interestingly, these compounds offer a simple and reliable strategy to control the quantity of dispersed CNTs as a function of imidazolium content. This approach is particularly suitable for the elaboration of biosourced and biodegradable materials based on poly(butylene succinate) with high‐performance properties.
Instability of syllable repetition in patients with spinocerebellar ataxia and Parkinson's disease
Authors: Schmitz‐Hübsch Tanja , Eckert Oleksandr , Schlegel Uwe , Klockgether Thomas , Skodda Sabine 
Published: November 2011

AbstractBackground:The aim of the current study was to test the hypothesis of a fundamental impairment of vocal pacing in patients with spinocerebellar ataxia and Parkinson's disease.Methods:Thirty‐one patients with spinocerebellar ataxia, 42 patients with Parkinson's disease, and 43 healthy controls had to repeat a single syllable at a self‐chosen isochronous pace. The coefficient of variance for interval length and the change in interval length with successive utterances were used to describe pace stability.Results:Ataxic and parkinsonian patients both showed a significant instability of vocal pace performance. Ataxic speakers featured difficulties in keeping the pace immediately from the beginning of the task, whereas parkinsonian patients accelerated the pace in the course of the performance. The results support differential roles of cerebellar and basal ganglia pathways in motor speech performance.Conclusions:Cerebellar function may be required for the general precision of interval timing, whereas basal ganglia rather serve to maintain rhythm stability over time. © 2011 Movement Disorder Society
Development of single‐stage and doherty GaN‐based hybrid RF power amplifiers for quasi‐constant envelope and high peak to average power ratio wireless standards
Authors: Moreno Jorge , Fang Jie , Quaglia Roberto , Camarchia Vittorio , Pirola Marco , Ghione Giovanni 
Published: November 2011

AbstractThis article describes the design, realization, and characterization of a set of hybrid medium‐power RF power amplifiers, based on a commercial packaged GaN HEMT and developed through a low‐cost microstrip process. Two different design solutions suitable for wireless applications are presented: the first, intended for a constant envelope modulation (with reference to the GSM standard) is a Class F amplifier exhibiting at 900 MHz an efficiency of 72% with an output power of 37.5 dBm; the second, optimized for nonconstant envelope signals with high dynamics (with reference to the UMTS WCDMA standard) is a Doherty amplifier showing, at 2.14 GHz, an efficiency higher than 40% at 6 dB of output power back‐off with a maximum output power of 40 dBm. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:206–210, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26459
Miniaturized microstrip wilkinson power divider with capacitor loading
Authors: He Jun , Feng Chen Zhao , Hai Yang Bao , Ying Xiong Mei 
Published: November 2011

AbstractA novel miniaturized microstrip Wilkinson power divider with capacitor loading is presented in this article. The new divider not only effectively reduces the occupied area to 45% of the conventional one at 1.0 GHz, but also has good harmonic suppression performance. Furthermore, the new structure has only two variable parameters and can be easily designed. The design is validated both by simulation and measurement. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:61–63, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26484
A broadband antenna using the modified ground plane with a complementary split ring resonator for 5‐GHz WLAN band‐notched performance
Authors: Kim Jangyeol , Kim Nam , Lee Seungwoo 
Published: November 2011

AbstractIn this article, a new configuration of a broadband antenna is proposed.The designed antenna is an elliptical monopole antenna with a complementary split ring resonator structure that is inserted in the ground plane for rejecting the 5‐GHz WLAN band (5.15–5.35 and 5.725–5.825 GHz). In addition, impedance matching technique implemented by rectangular slot applied to the ground plane is suggested. The technique can be an effective method to achieve the wider bandwidth. The designed antenna shows that a VSWR less than 2 was satisfied with a resonant frequency in the range of 2.67–12 GHz. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:6–3, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26512
Improved enrichment and proteomic identification of outer membrane proteins from a Gram‐negative bacterium: Focus on Caulobacter crescentus
Authors: Cao Yuan , Johnson Helen M. , Bazemore‐Walker Carthene R. 
Published: November 2011

AbstractEfforts to characterize proteins found in the outer membrane (OM) of Gram‐negative bacteria have been steadily increasing due to the promise of expanding our understanding of fundamental bacterial processes such as cell adhesion or cell wall biogenesis as well as the promise of finding potential vaccine‐ or drug‐targets for virulent bacteria. We have developed a mass spectrometry‐compatible experimental strategy that resulted in increased coverage of the OM proteome of a model organism, Caulobacter crescentus. The specificity of the OM enrichment step was improved by using detergent solubilization of the protein pellet, low‐density cell culture conditions, and a surface‐layer deficient cell line. Additionally, efficient gel‐assisted digestion, high‐resolution RP/RP‐MS/MS, and rigorous bioinformatic analysis led to the identification of 234 proteins using strict identification criteria (≥two unique peptides per protein; peptide false discovery rate <2%). Eighty‐four of the detected proteins were predicted to localize to the OM or extracellular space. These results represent ∼70% coverage of the predicted OM/extracellular proteome of C. crescentus. This analytical approach, which considers important experimental variables not previously explored in published OM protein studies, can be applied to other OM proteomic endeavors “as is” or with slight modification and should improve the large‐scale study of this especially challenging subproteome.
A proteomics approach to the cell‐surface interactome using the enzyme‐mediated activation of radical sources reaction
Authors: Jiang Songlin , Kotani Norihiro , Ohnishi Tomoko , Miyagawa‐Yamguchi Arisa , Tsuda Masayuki , Yamashita Ryusuke , Ishiura Yoshihito , Honke Koichi 
Published: November 2011

AbstractWe previously reported a simple method to analyze the interaction of cell‐surface molecules in living cells. This method termed enzyme‐mediated activation of radical sources (EMARS) is featured by radical formation of the labeling reagent by horseradish peroxidase (HRP). Herein, we propose an approach to the cell‐surface molecular interactome by using combination of this EMARS reaction and MS‐based proteomics techniques. In the current study, we employed a novel labeling reagent, fluorescein‐conjugated arylazide. The fluorescein‐tagged proteins resulting from the EMARS reaction were directly detected in the electrophoresis gels with a fluorescence image analyzer. These products were also purified and concentrated by immunoaffinity chromatography with anti‐fluorescein antibody‐immobilized resins. The purified fluorescein‐tagged proteins were subsequently subjected to an MS‐based proteomics analysis. Analysis using HRP‐conjugated cholera toxin subunit B, which recognizes a lipid raft marker, ganglioside GM1, revealed 30 membrane and secreted proteins that were candidates for the cell‐surface molecules coclustering with GM1. The proposed approach will provide a clue to study functional molecular interactions in a variety of biological events on the cell surface.