bluuebunny/crossref_metadata_2025_split huggingface dataset:
Radiation therapy for life‐threatening huge laryngeal hemangioma involving pharynx and parapharyngeal space
Authors: Huang Chun–Ming , Lee Ka–Wo , Huang Chih–Jen 
Published: March 2012

AbstractBackgroundAdult hemangiomas are rare, slowly progressing vascular tumors. Potential complications include laryngeal involvement or massive tumor burden.MethodsA case of recurrent, bulky laryngeal hemangioma involving the parapharyngeal space is presented herein. The clinical course and treatment are described, and a series of MRI studies are compared to demonstrate the treatment response.ResultsA 35‐year‐old woman presented with progressive hoarseness, neck fullness, and intermittent dyspnea caused by a bulky laryngeal hemangioma. Steroid therapy had a limited response. Radiation therapy with a total dose of 40 Gray (Gy) in 20 fractions successfully relieved her symptoms. Image studies after therapy revealed moderate tumor regression. The patient showed no serious complications during the next 2 years of follow‐up.ConclusionRadiation therapy may be effective in intractable and function‐threatening laryngeal hemangiomas. © 2012 Wiley Periodicals, Inc. Head Neck, 2013
Elevated gastrin‐releasing peptide receptor mRNA expression in buccal mucosa: Association with head and neck squamous cell carcinoma
Authors: Egloff Ann Marie , Liu Xuwan , Davis Autumn L. Gaither , Trevelline Brian K. , Vuga Marike , Siegfried Jill M. , Grandis Jennifer R. 
Published: March 2012

AbstractBackgroundExpression of gastrin‐releasing peptide receptor (GRPR) is elevated in mucosa adjacent to head and neck squamous cell carcinoma (HNSCC) compared with mucosa from cancer‐free controls, suggesting elevated GRPR expression may indicate presence of HNSCC.MethodsWe measured GRPR mRNA levels in histologically normal buccal mucosa from 65 surgical patients with HNSCC and 75 cancer‐free control subjects using quantitative polymerase chain reaction (PCR). We tested for association between GRPR expression and HNSCC and evaluated differences in patient progression‐free survival (PFS).ResultsBuccal GRPR expression was higher in cases but not controls who were active smokers (p = .04). High GRPR expression was associated with HNSCC (odds ratio [OR] = 3.55; 95% confidence interval [CI] = 1.15–10.93), even after adjustment for age, sex, tobacco use, and sample storage time. PFS did not differ between patients with HNSCC with high versus low GRPR expression (p = .22).ConclusionElevated buccal GRPR expression was significantly associated with HNSCC independent of known risk factors but was not an indicator of disease prognosis. © 2012 Wiley Periodicals, Inc. Head Neck, 2013
The Nature of Expertise in Scheduling: The Case of Timetabling
Authors: Hoc Jean‐Michel , Guerin Clément , Mebarki Nasser 
Published: March 2012

AbstractThis study aims to gain greater insight into scheduling expertise by comparing the work of experts and novices when designing a university timetable. We assumed that the scheduling activity would take place within two dual spaces: the constraints space (CS) and the objects space (OS). Constraints are defined in the strictest sense as relations between variables that cannot be represented in the solution (timetable), whereas objects are constraint satisfactions that can be thus represented. The study shows that experts were more likely than novices to use external representations as activity support. They satisfied many constraints with partially defined objects. On the contrary, novices devoted a long time to managing constraints in their heads before defining only fully specified objects (concrete objects). The objects space could be a suitable activity support for experts. Novices, on the other hand, could benefit from support in managing constraints and translating constraints into objects. © 2012 Wiley Periodicals, Inc.
The performance of the reformulated Gash's interception loss model in Mexico's northeastern temperate forests
Authors: Návar José 
Published: March 2012

AbstractThe quantitative importance of rainfall interception loss and the performance of the reformulated Gash model were evaluated as a function of basal area in Mexico's northeastern temperate forest communities. A sensitivity analysis as well as an iterative search of parameters matched interception loss measurements and assessments and isolated coefficient values that drive the model performance. Set hypothesis was tested with a total of 73 rainfalls recorded on four forest stands with different canopy cover for model fitting (39) and validation (34). The reformulated Gash model predicted well rainfall interception loss because mean deviations between recorded and modelled interception loss as a function of gross rainfall, MD, were <2.6% and 5.3% for fitting and validating parameter data sets, respectively. Basal area was negatively related to the model performance, but maximum projected MD range values can be found in most interception loss studies, for example, <7% when basal area is <5 m2 ha−1. The wet canopy evaporation rate and the canopy storage coefficient drive interception loss and the iterative parameter search showed that high wet canopy evaporation rates were expected in these forests. These parameters must be further studied to physically explain drivers of high wet canopy evaporation rates. Copyright © 2012 John Wiley & Sons, Ltd.
Metabolic adaptations to arsenic‐induced oxidative stress in male wistar rats
Authors: Rana Tanmoy , Bera Asit Kumar , Das Subhashree , Bhattacharya Debasis , Pan Diganta , Das Subrata Kumar 
Published: March 2012

AbstractThe present study was planned to investigate the effect of arsenic in rats on several biochemical indices of oxidative stress. Rats were exposed to arsenite in drinking water for upto 12 weeks. Chronic exposure to arsenic for a period of 12 weeks significantly (p < 0.05) increased arsenic burden in blood, liver, and kidney. Several intrinsic antioxidant defenses were activated after a 4‐week exposure to arsenic. Some remained elevated, but others became depressed over a longer exposure period. Alterations in most of the biochemical variables reached statistical significant (p < 0.05). Arsenic significantly (p < 0.01) reduced mRNA expression of the superoxide dismutase 2 (SOD2) gene with respect to the glyceraldehyde 3‐phosphate dehydrogenase (GAPDH) gene. These observations indicated that prolong exposure to arsenic causes induction of oxidative stress and biochemical alterations. © 2012 Wiley Periodicals, Inc. J Biochem Mol Toxicol 26:101–116, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/jbt.20416
Production of nitric oxide by human salivary peroxidase and by bovine lactoperoxidase
Authors: Palmerini Carlo Alberto , Marmottini Fabio , Arienti Giuseppe 
Published: March 2012

AbstractPeroxidases catalyze the oxidation of nitrite to nitrate in the presence of hydrogen peroxide. Two pathways may occur: one entailing the intermediate formation of NO2 and the other implying the generation of peroxynitrite. The products of nitrite (NO2−) oxidation by salivary peroxidase (SPO) and commercial bovine lactoperoxidase (LPO) are studied by utilizing an electrochemical assay that allows the direct, continuous monitoring of NO and/or NO2 and by HPLC to assess nitrates at the end of the reaction. Dialyzed saliva and LPO, in the presence of H2O2, convert nitrite into nitrate and form some NO, with a molar ratio of 103. In our experimental conditions, no NO2 was detectable among the products of nitrite oxidation. SCN− inhibits NO formation and so does I−, although at higher concentrations. No effects are observed with Cl− or Br−. We conclude that SPO and LPO transform NO2− into nitrate‐forming small amounts of NO in the presence of H2O2 as an intermediate or a by‐product, synthesized through the peroxynitrite pathway. © 2012 Wiley Periodicals, Inc. J Biochem Mol Toxicol 26:87–93, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/jbt.21407
Unexpectedly strong anion–π interactions on the graphene flakes
Authors: Shi Guosheng , Ding Yihong , Fang Haiping 
Published: March 2012

AbstractInteractions of anions with simple aromatic compounds have received growing attention due to their relevancy in various fields. Yet, the anion–π interactions are generally very weak, for example, there is no favorable anion–π interaction for the halide anion F− on the simplest benzene surface unless the H‐atoms are substituted by the highly negatively charged F. In this article, we report a type of particularly strong anion–π interactions by investigating the adsorptions of three halide anions, that is, F−, Cl−, and Br−, on the hydrogenated‐graphene flake using the density functional theory. The anion–π interactions on the graphene flake are shown to be unexpectedly strong compared to those on simple aromatic compounds, for example, the F−‐adsorption energy is as large as 17.5 kcal/mol on a graphene flake (C84H24) and 23.5 kcal/mol in the periodic boundary condition model calculations on a graphene flake C113 (the supercell containing a F− ion and 113 carbon atoms). The unexpectedly large adsorption energies of the halide anions on the graphene flake are ascribed to the effective donor–acceptor interactions between the halide anions and the graphene flake. These findings on the presence of very strong anion–π interactions between halide ions and the graphene flake, which are disclosed for the first time, are hoped to strengthen scientific understanding of the chemical and physical characteristics of the graphene in an electrolyte solution. These favorable interactions of anions with electron‐deficient graphene flakes may be applicable to the design of a new family of neutral anion receptors and detectors. © 2012 Wiley Periodicals, Inc.
Retracted: Efficient separation of Nannochloropsis salina using minerals to optimize algae sedimentation
Authors: Epsztein Razi , Felder Amichai , Mishelevitz Alex , Gitis Vitaly 
Published: March 2012

AbstractThe following article from the Journal of Chemical Technology and Biotechnology, Efficient separation of Nannochloropsis salina using minerals to optimize algae sedimentation by Razi Epsztein, Amichai Felder, Alex Mishelevitz and Vitaly Gitis, published online on 20 March, 2012 in WileyOnlineLibrary (http://onlinelibrary.wiley.com; doi: 10.1002/jctb.3754), has been retracted by agreement between the authors, the journal Editor in Chief, Jack Melling and John Wiley & Sons. The retraction has been agreed following an investigation by the academic ethics code committee of Ben‐Gurion University which decided that the corresponding author had no right to publish the results of the study without permission from the other authors (decision from 21 June 2012). Copyright © 2012 Society of Chemical Industry
GM1485, a nonimmunosuppressive immunophilin ligand, promotes neurofunctional improvement and neural regeneration following stroke
Authors: Ducruet Andrew F. , DeRosa Peter A. , Zacharia Brad E. , Sosunov Sergey A. , Connolly E. Sander , Weinstein David E. 
Published: March 2012

AbstractStroke is the leading cause of disability in the industrialized world, and the development of pharmacologic strategies to promote poststroke recovery is of paramount importance. GM1485, a nonimmunosuppressive immunophilin ligand, promotes regeneration of multiple cell types following injury. In the present study, we evaluated the effect of GM1485 treatment on functional recovery and neurogenesis following rat stroke. Transient cerebral ischemia was induced in rats receiving daily GM1485 (5 mg/kg) beginning 24 hr postischemia and continuing for a total of 6 weeks. Neurological function was evaluated over this period using a battery of neurobehavioral tests, and immunostaining for stem‐cell markers was performed following animal sacrifice. An in vitro model of oxidative stress was also employed to evaluate the ability of GM1485 to mediate stem‐cell‐like induction and plasticity. GM1485‐treated rats demonstrated improved neurological function as well as increased Sox2+ cells in the ipsilateral SVZ and striatum relative to vehicle‐treated rats. Additionally, GM1485‐treated fibroblasts subjected to oxidative stress were reprogrammed to a stem‐cell‐like phenotype and were able to differentiate down a neuronal lineage. These data demonstrate that GM1485 administration improves neurological function and is consistent with an upregulation of endogenous neurogenesis following stroke in rats. Further experiments are necessary to characterize the molecular pathways involved in these processes. © 2012 Wiley Periodicals, Inc.
Rationale for complete metastasectomy in patients with stage IV metastatic melanoma
Authors: Ollila David W. , Gleisner Ana L. , Hsueh Eddy C. 
Published: March 2012

AbstractPatients with stage IV melanoma have usually been treated with systemic therapies; however, the overall survival for patients with this approach is disappointing. A complete surgical resection of metastatic disease to stage IV sites offers the best chance to maximize survival. This review article will present data supporting the position that if a complete metastasectomy is technically feasible, then surgery should be strongly considered the first option for properly selected patients with stage IV melanoma. J. Surg. Oncol. 2011; 104:420–424. © 2011 Wiley‐Liss, Inc.
Unified model for blister growth in coating degradation using weight function and diffusion concepts
Authors: Prawoto Y. 
Published: March 2012

AbstractThis paper discusses new conceptual and mathematical models for blistering propagation especially useful for coating life assessment. It proposes new equations governing blister development that combines fracture mechanics and diffusion based concepts. The fracture mechanics concept is used to treat blister growth as crack propagation, while the diffusion concept is used to treat the ionic transport that eventually causes corrosion and blistering to occur. The new equations are expected to be useful in coating development as well as coating life assessment. Furthermore, with little modification, the equations are also beneficial for other surface engineering methods.
Corrosion characterization of microarc oxidation coatings formed on Mg–7Li alloy
Authors: Li J. G. , Lv Y. , Wang H. W. , Zhu Z. J. , Wei Z. J. , Meng X. C. 
Published: March 2012

AbstractCeramic coatings with thickness of 27 µm were fabricated on Mg–7Li alloy in Na2SiO3–C6H18O24P6solution by microarc oxidation (MAO). The morphology and phase composition of MAO coatings were characterized by scanning electron microscopy (SEM) and X‐ray diffraction (XRD). The corrosion behavior of the bare and MAO coated Mg–7Li alloy was investigated by potentiodynamic polarization and electrochemical impedance spectroscopy (EIS). Results showed that the MAO coatings were composed of MgO, Li2O, and Mg2SiO4, and there existed some micropores on the coating surface with a diameter of 3–20 µm. The corrosion potential (Ecorr) and corrosion current density (Icorr) of the MAO coated alloy were about −1.4761 V and 7.204 × 10−7 A/cm2, respectively. TheEcorrof the MAO coated alloy increased by 109.6 mV and itsIcorrdecreased by three orders compared with that of the bare Mg–7Li alloy. The EIS plots indicated that the impedance of the MAO coated alloy was 15 times higher than that of the bare alloy. The fitting parameters showed that the resistance of the MAO coatings was far greater than that of the bare alloy. The dense intermediate layer and the transition layer of the MAO coatings acted as a barrier to hinder the proceeding of solution permeation, remarkably improving the corrosion resistance of the Mg–7Li alloy.
Frequency down‐converter with vector control capability for receiving phased array applications
Authors: Marante R. , García J.A. , Cabria L. , Rizo L. , Ruiz M. N. 
Published: March 2012

AbstractIn this article, a simple and nonexpensive solution to be used as constitutive element in receiving phased arrays is proposed. Properly adjusting a PHEMT gate biasing voltage, when used in an active mixing topology, the fundamental component of its time‐varying transconductance may be controlled, both in magnitude and sign. In this way, a down‐converting I/Q architecture, implemented over two of such mixers, is shown to allow the desired level adjustment and phase shifting over the resulting intermediate frequency signal, either for beamsteering or beamforming purposes. The down‐converter performance may be accurately predicted, not only in terms of the desired but also of the intermodulation distortion components, based on the use of two‐dimensional converting transfer functions. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:1371–1375, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26806
A dual band‐notched UWB printed antenna with C‐shaped and U‐shaped slots
Authors: Wang Chen , Yan Ze‐Hong , Li Bo , Xu Ping 
Published: March 2012

AbstractA novel printed antenna having dual frequency band‐notched functions for ultra‐wideband applications is proposed and studied. The antenna consists of a rectangular radiating patch with a staircase structure symmetrically in the bottom. With a pair of C‐shaped slots and a U‐shaped slot introduced on the radiating patch, two frequency‐notched responses at 3.5/5.5 GHz are obtained. And, good radiation patterns and gains within the operating band have been observed. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:1450–1452, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26807
Small‐size WWAN tablet computer antenna with distributed and lumped parallel resonant circuits
Authors: Wong Kin‐Lu , Liu Ying‐Chieh 
Published: March 2012

AbstractThe technique of embedding a distributed parallel resonant circuit (PRC) and a lumped PRC, respectively, to enhance the bandwidths of the lower and upper bands of a small‐size tablet computer antenna to cover the WWAN operation in the 824–960 and 1710–2170 MHz bands is presented. With the proposed technique, the antenna occupies a small volume of 40 × 10 × 3.8 mm3 only and can mainly be disposed on a thin FR4 substrate of 40 × 10 mm2. The antenna comprises a feeding portion, a long shorted strip, and an antenna ground. The shorted strip is short‐circuited to the antenna ground, which is then connected to the display ground in the tablet computer. A lumped PRC and a distributed PRC are added at the front and open ends of the feeding portion, respectively. The two PRCs, respectively, generate a parallel resonance at the high‐frequency tails of the first two resonant modes at about 900 and 1800 MHz contributed by the shorted strip to result in additional resonances occurred near the two resonant modes, thereby resulting in additional resonant modes excited in the desired antenna's lower and upper bands. This behavior greatly increases the operating bandwidths of the antenna's lower and upper bands, without additional resonant elements needed. Hence, small size for the proposed WWAN antenna is obtained. Details of the proposed antenna and the bandwidth enhancement techniques applied therein are presented. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:1348–1353, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26811
Development of low phase noise digitally controlled CMOS ring oscillator with quadrature outputs
Authors: Nugroho Prapto , Pokharel Ramesh K. , Anand Awinash , Tomar Abishek , Kanaya Haruichi , Yoshida Keiji 
Published: March 2012

AbstractThis article present a development of low phase noise 14‐bit digitally controlled oscillator (DCO) based on ring oscillator with quadrature output in 0.18‐μm CMOS technology. Proposed design use digital control and feed‐forward technique to obtain wider output swing and stable quadrature output on even number of stages respectively. Designed DCO has tuning frequency range from 212 MHz to 1 GHz. Phase noise at 1‐MHz frequency offset is −123.93 dBc/Hz, which is the lowest among the recently published result. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:1479–1483, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26824
Design of compact UWB bandpass filter with dual notched bands using novel SCRLH resonator
Authors: Liu Bo‐Wen , Yin Ying‐Zeng , Sun An‐Feng , Fan Shou‐Tao , Ren Xue‐Shi 
Published: March 2012

AbstractIn this letter, a novel and compact ultra‐wideband (UWB) bandpass filter with dual sharply notched bands based on a novel simplified composite right/left‐handed (SCRLH) resonator is presented.The basic UWB BPF comprises a stub‐loaded multiple‐mode resonator and two interdigital coupled lines. The SCRLH resonator is studied and introduced to obtain the dual notched bands. The proposed filter is simulated, fabricated, and measured, with good agreement between the simulated and measured results. The two notched bands of the BPF centered at 5.8 and 8.7 GHz have 10‐dB fractional bandwidths of about 2.6 and 3.4%, respectively. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:1506–1508, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26832
Operating frequency calculation of a shorting pin‐loaded ETMA
Authors: Aydin Elif , Can Sultan 
Published: March 2012

AbstractThis article presents the calculation of upper and lower operating frequencies with the expressions of effective side length, effective permittivity, and correction factor to develop accurate lower and upper operating frequencies of a single feed, a shorting pin‐loaded equilateral triangular patch, that is, analyzed through a cavity model. To insert permittivity and shorting pin position effects correction factor expressions are determined empirically for both upper and lower frequencies. The various positions of the shorting pin, substrate thickness and side length properties are considered by calculating both upper and lower frequencies. The results from this study are compared with research in the literature comprising results from both experimental and transmission line models. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:1432–1435, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26838
Stacked compact ring‐coupled rectangular microstrip antenna for multiband applications
Authors: Vani R. M. , Naveen S.M. , Hunagund P. V. 
Published: March 2012

AbstractThe investigations on stacked compact ring coupled rectangular microstrip antenna which are able to generate multiple resonant frequencies in the wireless communication bands, are reported. In these antennas by embedding various shapes of slots the size reduction is obtained. Also, the stacking on the ring‐coupled patch has been made to achieve wide bandwidth. The multifrequency nature of the stacked slotted patch is studied using IE3D software. The proposed antennas exhibits broadside radiation pattern. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:1387–1391, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26842
A small CPW‐fed ultra wideband antenna with dual band‐notched characteristics
Authors: Moosazadeh M. , Esmati Z. 
Published: March 2012

AbstractA coplanar waveguide fed (CPW‐fed) ultra wideband (UWB) antenna with dual band‐ notched characteristics is proposed. In this antenna, an E‐shaped patch and a ground plane truncated with two mirror notches are designed for UWB applications. Two notched frequency bands are achieved by adjusting the E‐shaped form lengths in the radiation patch. The proposed antenna operates in the 3.1–10.6 GHz for a voltage standing‐wave ratio (VSWR) less than 2, except two frequency notched bands of 3.3–4.23 and 5.05–5.87 GHz, and has small overall dimensions of 18 × 15 × 1.6 mm3. Experimental and simulated antenna results show that the proposed antenna has a desirable VSWR level and radiation pattern characteristics for the UWB frequency band range. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:1528–1532, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26847