bluuebunny/crossref_metadata_2025_split huggingface dataset:
Counterion and Solvent Effects on the Primary Coordination Sphere of Copper(II) Bis(3,5‐dimethylpyrazol‐1‐yl)acetic Acid Coordination Compounds
Authors: Kozlevčar Bojan , Gamez Patrick , de Gelder René , Jagličić Zvonko , Strauch Peter , Kitanovski Nives , Reedijk Jan 
Published: July 2011

AbstractFour copper(II) coordination compounds with the neutral ligand bis(3,5‐dimethylpyrazol‐1‐yl)acetic acid (Hbdmpza, C12H16N4O2) and its anionic form (bdmpza–), namely [Cu(Hbdmpza)2](HSO4)2 (1), [Cu(Hbdmpza)2]Cl2 (2), [Cu(bdmpza)2](CH3COOH)(H2O) (3), and [Cu(bdmpza)2][Cu2(O2CCH3)4] (4) have been synthesized starting from different metal salts. All the compounds have been fully characterized by physical and analytical methods. In addition, a single‐crystal XRD analysis revealed the 3D structure of 1, which exhibits tridentate, vicinal N,N,O‐coordination of two symmetry‐related Hbdmpza ligands in an elongated octahedral arrangement with four equatorial nitrogen atoms and two axial oxygen atoms. The neutral carboxylic moiety acts as a hydrogen‐bond donor to a HSO4– counterion. The two hydrogensulfates form a unique hydrogen‐bonded pair (HSO4–)2 with very short O···O distances (2.59 Å) bridged between adjacent [Cu(HL)2]2+ coordination units. Also a short O···O contact (2.54 Å) is present between the C–OH and an O of a hydrogensulfate. A characteristic IR C=O vibration is observed at 1700 cm–1 for 1 and 2, whereas the νas(O2C) vibration is present at 1650 cm–1 for 3 and 4. These IR data strongly suggest the presence of Hbdmpza ligands in 1 and 2 and the deprotonated form bdmpza– in 3 and 4. A mononuclear coordination unit [CuL2], as proven for 1 by X‐ray diffraction, is also proposed for the other compounds 2–4. In compound 4, an additional dinuclear [Cu2(O2CCH3)4] neutral coordination unit is present, as deduced from the vibration bands νas(O2C) at 1600 cm–1 and νs(O2C) at 1420 cm–1, which are typical of a carboxylate function, and from the two‐species analysis of the χMT(T) curve of the magnetic susceptibility data (2J = –322 cm–1). Also, the EPR spectra recorded at different temperatures agree with this structure.
Simulation of spatially varying ground motions including incoherence, wave‐passage and differential site‐response effects
Authors: Konakli Katerina , Der Kiureghian Armen 
Published: July 2011

SUMMARYA method is presented for simulating arrays of spatially varying ground motions, incorporating the effects of incoherence, wave passage, and differential site response. Non‐stationarity is accounted for by considering the motions as consisting of stationary segments. Two approaches are developed. In the first, simulated motions are consistent with the power spectral densities of a segmented recorded motion and are characterized by uniform variability at all locations. Uniform variability in the array of ground motions is essential when synthetic motions are used for statistical analysis of the response of multiply‐supported structures. In the second approach, simulated motions are conditioned on the segmented record itself and exhibit increasing variance with distance from the site of the observation. For both approaches, example simulated motions are presented for an existing bridge model employing two alternatives for modeling the local soil response: i) idealizing each soil‐column as a single‐degree‐of‐freedom oscillator, and ii) employing the theory of vertical wave propagation in a single soil layer over bedrock. The selection of parameters in the simulation procedure and their effects on the characteristics of the generated motions are discussed. The method is validated by comparing statistical characteristics of the synthetic motions with target theoretical models. Response spectra of the simulated motions at each support are also examined. Copyright © 2011 John Wiley & Sons, Ltd.
Modeling and simulating of single side short secondary linear induction motor for high speed studies
Authors: Hamzehbahmani Hamed 
Published: July 2011

SUMMARYShort rotor linear induction motors are a type of linear motors in which the stator is the fixed part and the rotor is the moving part. Because of their weight and being free from electrical source, these linear motors are optimal to be used in high speed ground transportation and in specific industrial applications. In this paper, a mathematical model for single side short rotor linear induction motors is proposed. To study the performance of these linear motors in high speed purposes, MatLab/Simulink‐based simulations were carried out, and then, the experimental results were compared to the simulation results. Copyright © 2011 John Wiley & Sons, Ltd.
A comparison of iterative MIMO receivers under channel uncertainty
Authors: Qaisrani M. T. N. , Naqvi S. M. R. 
Published: July 2011

ABSTRACTThis work investigates iterative architectures for coded transmission over multiple input multiple output channels in the presence of channel uncertainty. Robust receivers that are less sensitive to the uncertainty are designed. The nature of iterative algorithms is especially suited to iterative decoding and channel estimation (ID&CE), which is a widely accepted means of dealing with imperfections in channel state information. ID&CE re‐estimates the channel in each iteration to deal with the uncertainty. The derived robust algorithm can be combined with ID&CE to yield significant performance gains as demonstrated by the simulation results. Copyright © 2011 John Wiley & Sons, Ltd.
Strength of Anode‐Supported Solid Oxide Fuel Cells
Authors: Faes A. , Frandsen H. L. , Kaiser A. , Pihlatie M. 
Published: July 2011

AbstractNickel oxide and yttria doped zirconia composite strength is crucial for anode‐supported solid oxide fuel cells, especially during transient operation, but also for the initial stacking process, where cell curvature after sintering can cause problems. This work first compares tensile and ball‐on‐ring strength measurements of as‐sintered anodes support. Secondly, the strength of anode support sintered alone is compared to the strength of a co‐sintered anode support with anode and electrolyte layers. Finally, the orientation of the specimens to the bending axis of a co‐sintered half‐cell is investigated. Even though the electrolyte is to the tensile side, it is found that the anode support fails due to the thermo‐mechanical residual stresses.
Surface energy partitioning and evapotranspiration over a double‐cropping paddy field in Bangladesh
Authors: Hossen Md. Shahadat , Mano Masayoshi , Miyata Akira , Baten Md. Abdul , Hiyama Tetsuya 
Published: July 2011

AbstractThe eddy covariance technique was used to measure surface energy balance and evapotranspiration in a double‐cropping paddy field in Mymensingh, northern Bangladesh (24·73°N, 90·42°E, 18 m above sea level). Because irrigation in dry season and frequent rainfall in the summer monsoon season kept the field flooded most of the year, most of the radiant energy was converted to latent heat flux except for the drained fallow period in winter. The ratio of the latent heat flux to the available energy, or evaporative fraction (EF), was 71–74% on average for two growing seasons and the flooded summer fallow period in rainy season. The evapotranspiration rate (ET) ranged from 0·2 to 6·6 mm d−1. The seasonal accumulated ET from transplanting to harvest in dry‐season rice (Boro rice) and wet‐season rice (Aman rice) was 370 and 307 mm with seasonal average of 3·3 and 2·9 mm d−1, respectively. In addition, 283 mm was lost as ET during the flooded summer fallow period, which characterized the seasonal variation of ET in this study site. The canopy conductance (Gc) showed a wide range from 1·0 to 20·2 mm s−1, but larger Gc values were found at higher leaf area index (LAI) periods for both Boro and Aman rice. Gc was closely related to the ratio of ET to equilibrium evaporation (Eeq), suggesting seasonal variability of ET is control by Eeq and Gc. Partitioning of ET by applying an empirical equation indicated that about 70 and 64% of seasonal ET came from transpiration in the Boro rice and the Aman rice, respectively. Copyright © 2011 John Wiley & Sons, Ltd.
PHASES OF CONVERGENCE IN LATIN AMERICA: THE TECHNOLOGICAL DRIVERS
Authors: González Germán Héctor , Dabús Carlos Darío , Monterubbianesi Pablo Daniel 
Published: July 2011

AbstractThe paper analyses the convergence hypothesis in Latin America during 1960–2005. The evidence is not favourable to clear convergence or divergence trends and suggests the existence of transitory clubs of convergence. After 1990–1994, the lower income economies showed convergence to the richer countries but in a context of increasing dispersion of the per capita income. The development accounting and the decomposition of the total factor productivity indicate that those results are mainly explained by relative differences in technological capabilities. These are determined by structural and political factors. The efforts to integrate the economies were not enough to reduce the gap. Copyright © 2011 John Wiley & Sons, Ltd.
Developing optimized fMRI protocol for clinical use: Comparison of different language paradigms
Authors: Mahdavi Ali , Houshmand Sina , Oghabian Mohammad Ali , Zarei Mojtaba , Mahdavi Arash , Shoar Majid Haghighat , Ghanaati Hosein 
Published: July 2011

AbstractPurpose:To compare the potential of five functional magnetic resonance imaging (fMRI) language paradigms in activating language areas in Persian‐speaking volunteers in order to optimize these tasks for clinically useful protocol.Materials and Methods:16 healthy right‐handed Persian‐speaking volunteers were studied. Each individual performed five tasks during the fMRI scan: word generation (WG), object naming (ON), word reading (WR), word production (WP), and reverse word reading (RWR). The ability of each task to activate classical language areas was assessed using group analysis. In addition, the lateralization index (LI) for each subject‐task was calculated and compared.Results:We found that WP, RWR, and WG robustly activated language‐related areas in the dominant hemisphere. ON and WR failed to sufficiently delineate these activation areas. Highest activation intensities in the frontal lobe (including Broca's area) were seen with WP, whereas RWR showed the highest LI among all examined tasks.Conclusion:Our results demonstrated that the Persian version of WG and newly presented WP and RWR tasks can be reliably used for localization of language‐related areas in Persian speakers. This type of language evaluation may be used in presurgical planning of neurosurgical procedures in the Persian population. We recommend application of WP and RWR in future researches establishing the optimized protocol for other language speakers. J. Magn. Reson. Imaging 2011;. © 2011 Wiley‐Liss, Inc.
31P MR spectroscopic imaging detects regenerative changes in human liver stimulated by portal vein embolization
Authors: Qi Jing , Shukla‐Dave Amita , Fong Yuman , Gönen Mithat , Schwartz Lawrence H. , Jarnagin William M. , Koutcher Jason A. , Zakian Kristen L. 
Published: July 2011

AbstractPurpose:First, to evaluate hepatocyte phospholipid metabolism and energetics during liver regeneration stimulated by portal vein embolization (PVE) using proton‐decoupled 31P MR spectroscopic imaging (31P‐MRSI). Second, to compare the biophysiologic differences between hepatic regeneration stimulated by PVE and by partial hepatectomy (PH).Materials and Methods:Subjects included six patients with hepatic metastases from colorectal cancer who were scheduled to undergo right PVE before definitive resection of right‐sided tumor.31P‐MRSI was performed on the left liver lobe before PVE and 48 h following PVE. Normalized quantities of phosphorus‐containing hepatic metabolites were analyzed from both visits. In addition, MRSI data at 48 h following partial hepatectomy were compared with the data from the PVE patients.Results:At 48 h after PVE, the ratio of phosphomonoesters to phosphodiesters in the nonembolized lobe was significantly elevated. No significant changes were found in nucleoside triphosphates (NTP) and Pi values. The phosphomonoester (PME) to phosphodiester (PDE) ratio in regenerating liver 48 h after partial hepatectomy was significantly greater than PME/PDE 48 h after PVE.Conclusion:31P‐MRSI is a valid technique to noninvasively evaluate cell membrane metabolism following PVE. The different degree of biochemical change between partial hepatectomy and PVE indicates that hepatic growth following these two procedures does not follow the same course. J. Magn. Reson. Imaging 2011;. © 2011 Wiley‐Liss, Inc.
Clinical functional MRI of sensorimotor cortex using passive motor and sensory stimulation at 3 tesla
Authors: Blatow Maria , Reinhardt Julia , Riffel Katharina , Nennig Ernst , Wengenroth Martina , Stippich Christoph 
Published: July 2011

AbstractPurpose:To establish a passive motor paradigm for clinical functional MRI (fMRI) that could be beneficial for patients with motor or attention deficits who are not able to perform active motor tasks.Materials and Methods:A novel standardized sensorimotor fMRI protocol was applied in 16 healthy volunteers at 3 Tesla (T) using active and passive motor tasks as well as sensory stimulation of hands and feet. Data analysis was carried out individually using a dynamic thresholding routine.Results:Active motor tasks yielded time efficient and robust blood‐oxygen‐level‐dependent (BOLD) signals in primary motor cortex. Noteworthy, it was possible to achieve equal activation levels within identical anatomical localization for passive and active motor tasks with these paradigms.Conclusion:Patients unable to perform active movements can benefit from paradigms with passive motor and sensory stimulation. Therefore, we recommend these paradigms for functional somatotopic mapping of the central region at 3T in clinical routine. J. Magn. Reson. Imaging 2011;. © 2011 Wiley‐Liss, Inc.
Comparison of enhancement characteristics between invasive lobular carcinoma and invasive ductal carcinoma
Authors: Mann Ritse M. , Veltman Jeroen , Huisman Henkjan , Boetes Carla 
Published: July 2011

AbstractPurpose:To compare enhancement characteristics between invasive lobular carcinoma (ILC) and invasive ductal carcinoma (IDC) on contrast enhanced MRI of the breast and to observe the magnitude of eventual differences as these may impair the diagnostic value of breast MRI in ILC.Materials and Methods:We performed an analysis of enhancement characteristics on biphasic breast MRI in a series of 136 patients (103 IDC, 33 ILC) using an in‐house developed application for pharmacokinetic modeling of contrast enhancement and a commercially available CAD application that evaluated the contrast‐enhancement versus time curve.Results:Pharmacokinetic analysis showed that the most enhancing voxels in IDC had significantly higher Ktrans‐values than in ILC (P < 0.01). No difference in ve‐values was noted between groups. Visual assessment of contrast‐enhancement versus time curves revealed wash‐out curves to be less common in ILC (48% versus 84%). However, when using the CAD‐application to assess the most malignant looking curve, the difference was blotted out (76% versus 86%).Conclusion:ILC enhances slower than IDC but peak enhancement is not significantly less. The use of a CAD‐application may help to determine the most malignant looking contrast‐enhancement versus time curve, and hence facilitates lesion classification. J. Magn. Reson. Imaging 2011;. © 2011 Wiley‐Liss, Inc.
Mesothelin expression correlates with prolonged patient survival in gastric cancer
Authors: Baba Kenji , Ishigami Sumiya , Arigami Takaaki , Uenosono Yoshikazu , Okumura Hiroshi , Matsumoto Masataka , Kurahara Hiroshi , Uchikado Yuto , Kita Yoshiaki , Kijima Yuko , Kitazono Masaki , Shinchi Hiroyuki , Ueno Shinichi , Natsugoe Shoji 
Published: July 2011

AbstractPurposeMesothelin expression is found in normal mesothelium, and cancerous mesothelin has been recently reported in ovarian and pancreas cancer. The clinicopathological implications of mesothelin expression have been discussed with respect to antitumor immunological mechanisms. However, there is no information on mesothelin expression in gastric cancer. The purpose of the current study is to identify the clinical significance of mesothelin in gastric cancer.Experimental DesignA total of 212 gastric cancer patients who received R0 gastrectomy at Kagoshima University Hospital were enrolled in this study. Mesothelin was detected immunohistochemically and visualized by ABC method. Intensity of cancerous mesothelin was divided into two categories (0–50%: negative group and 51–100%: positive group).ResultsMesothelin expression was detected in the cellular membrane. In accordance with the previous evaluation, patients were divided into two groups [mesothelin‐positive group: 124 (59%) and mesothelin‐negative group: 88 (41%)]. The mesothelin‐positive group had significantly more nodal involvement and significantly deeper tumor invasion than the mesothelin‐negative group (P < 0.05). However, by analysis confined to the 117 advanced gastric cancer patients, the 5‐year survival rate of the mesothelin‐positive group was 55%, which was significantly better than that of the mesothelin‐negative group. Multivariate analysis revealed that mesothelin expression is one of the independent prognostic factors of gastric cancer.ConclusionCancerous mesothelin expression in gastric cancer may be a useful tool to predict patient survival. J. Surg. Oncol. 2012; 105:195–199. © 2011 Wiley Periodicals, Inc.
Optimal timing of surgical intervention following adult laryngeal trauma
Authors: Mendelsohn Abie H. , Sidell Douglas R. , Berke Gerald S. , John Maie St. 
Published: July 2011

AbstractObjective:Laryngeal trauma is an infrequent diagnosis with a scarcity of published data. We aim to further define the factors associated with positive surgical outcomes of adult laryngeal trauma.Study Design:Multi‐institution database analysis.Methods:Of the 1.9 million trauma cases from the National Trauma Database (NTDB), 564 adult trauma events were selected with ICD‐9 codes specific to laryngeal trauma.Results:Laryngeal trauma was seen predominately in white (61.5%), middle‐aged (40.6 years), male (83.7%) patients experiencing blunt (70.7%) laryngeal injury with multiorgan system (92.2%) trauma. There was an overall 17.9% mortality rate. Within the 564 cases, 133 direct laryngoscopies, 185 tracheostomies, 53 laryngeal suturing, and 60 laryngeal fracture repairs were performed. In univariate negative binomial regression models, trauma severity (P ≤ .01), placement of tracheostomy (P lt; .01), and delayed tracheostomy placement (P = .04, .03, .048) were associated with increased ventilator dependence, intensive care unit (ICU) stay, and overall hospital admission duration. Multivariate regression models demonstrated significant associations between tracheostomy performed within 24 hours and shortened ICU stay (P = .03, β = −.28, SE = 1.7) and overall hospital stay (P = .009, β = −.23, SE = 3.1).Conclusions:The NTDB allows study of the largest laryngeal trauma cohort in modern literature. Although complexities arise in the treatment of laryngeal traumas, when indicated, surgical airway should be placed within 24 hours of presentation to improve the overall hospital course.
Analytical Hierarchy Process Based Assignment Model for Allotting Parking Slots to Different Localities
Authors: Bagla Vandana , Gupta Anjana 
Published: July 2011

ABSTRACTBecause of growing population and a consequent increase in number of vehicles, the problem of parking personal vehicles is becoming explosive. This paper suggests efficient use of surplus space to be utilized as parking slot using analytical hierarchy process and integer programming model. Examples covering a real situation justify the approach. Copyright © 2011 John Wiley & Sons, Ltd.
Front to back ratio improvement of a micro strip patch antenna using dual‐band isolated soft surface structures
Authors: Kim June‐Hyong , Lee Hong‐Min 
Published: July 2011

AbstractThis article presents a microstrip patch antenna with a novel soft surface structure. The proposed soft surface structure is useful for suppressing surface waves in a dielectric substrate at dual frequency band (Bluetooth and Wimax). By removing the ground plane edges of the patch antenna and forming soft surfaces within the bare substrate, the front‐to‐back ratio of a patch antenna is significantly improved. The proposed new isolated soft surface structure does not share the ground plane of a patch and it consists of two loops with a corner edged via‐hole. When the three different size of isolated unit cells are used, the front‐to‐back ratio of the fabricated patch antenna improved from about −18.5 to −22.47 dB, compared to a conventional patch antenna without cells. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:2396–2400, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26265
Urodynamic findings in young men with chronic lower urinary tract symptoms
Authors: Karami Hossein , Valipour Reza , Lotfi Behzad , Mokhtarpour Hooman , Razi Abdolah 
Published: July 2011

AbstractAimTo assess frequency of urodynamic abnormalities in young men with chronic lower urinary tract symptoms (LUTS).Materials and MethodsWe assessed 456 men (18–40 years old) with chronic LUTS. Those with the history of urogenital malignancies, neurological disease, urethral stricture or trauma, acute UTI, congenital urological disease, and diabetes mellitus were excluded. Patients were classified by special urodynamic diagnosis.ResultsMean patient age was 25.8 ± 5.9 years old and the mean symptom duration was 12.3 ± 3.2 months. Urodynamic studies showed bladder neck dysfunction in 96 of cases (21%), dysfunctional voiding in 69 (15.1%), detrusor overactivity in 62 (13.6%), small cystometric capacity in 49 (10.7%), and acontractile detrusor in 48 (10.5%), underactive detrusor in 11 (2.4%), low compliance in 18 (3.9%), detrusor overactivity plus acontractile detrusor in 6 (1.3%), low compliance plus small cystometric capacity in 5 (1.0%), detrusor overactivity plus small cystometric capacity together with low compliance in 4 (0.8%), low compliance plus Underactive detrusor in 3 (0.6%) and normal urodynamics in 85 (18.6%). Mean Qmax in patients with bladder neck dysfunction, dysfunctional voiding, underactive detrusor, acontractile detrusor, underactive detrusor plus low compliance, and acontractile detrusor plus detrusor overactivity were lower than those of the other groups. Mean postvoid residues in patients with underactive detrusor, and underactive detrusor plus low compliance, were higher than those in the remaining groups. Positive four‐glass test in patient with normal urodynamic was greater than those in the remaining groups.ConclusionA few clinical symptoms or noninvasive tests were useful in young men with chronic LUTS; hence, urodynamics are advised to make the correct diagnosis in this regard. Neurourol. Urodynam. Neurourol. Urodynam. 30: 1580–1585, 2011. © 2011 Wiley Periodicals, Inc.