bluuebunny/crossref_metadata_2025_split huggingface dataset:
Which is a more reliable indicator of survival after gastric cancer surgery: Postoperative complication occurrence or C‐reactive protein elevation?
Authors: Saito Takuro , Kurokawa Yukinori , Miyazaki Yasuhiro , Makino Tomoki , Takahashi Tsuyoshi , Yamasaki Makoto , Nakajima Kiyokazu , Takiguchi Shuji , Mori Masaki , Doki Yuichiro 
Published: October 2015

Background and ObjectivesThe impact of postoperative complications on long‐term outcome has been reported in several types of malignancies. However, it is unclear why postoperative complications affect long‐term outcome. The aim of this study is evaluating whether postoperative complication occurrence or C‐reactive protein (CRP) elevation better reflects long‐term outcome in gastric cancer patients.MethodsThis study included 305 patients who underwent curative surgery for pT2–T4b gastric cancer. Patients were divided into two groups based on the peak CRP value (CRPmax): low (<12 mg/dl) and high CRPmax (≥12 mg/dl). A multivariate analysis was conducted to identify independent prognostic factors for recurrence‐free survival (RFS).ResultsPostoperative complications (≥Grade II) occurred in 86 of 305 patients (28.2%). Although CRP elevation (P = 0.001) and postoperative complication occurrence (P = 0.045) was each significantly associated with RFS in the univariate analysis, multivariate analysis identified CRP elevation (P = 0.017) but not complication occurrence (P = 0.682) as an independent prognostic factor. Among patients without complications, those in the high CRPmax group had significantly worse RFS than those in the low CRPmax group (P = 0.004).ConclusionsCRP elevation is a more reliable indicator of survival after gastric cancer surgery than postoperative complication occurrence. Surgeons should minimize the postoperative inflammatory response to improve prognosis. J. Surg. Oncol. 2015;112:894–899. © 2015 Wiley Periodicals, Inc.
Biological Effect, Aquation, and Kinetics of Oxidation of Bis(2‐aminobenzothiazole)dichlorocobalt(II) Complex by Periodate in Aqueous Acidic Medium
Authors: Abdel‐Hady Alaa Eldin Mokhtar 
Published: October 2015

ABSTRACTThe biological effect, aquation, and kinetics of oxidation of bis(2‐aminobenzothiazole)dichlorocobalt(II) complex by periodate in aqueous acidic solutions were studied. The complex exhibited a broad resistance toward the studied pathogens. The average value of the aquation constant was calculated spectrophotometrically as 2.55 × 10−5 mol2 dm−6. Kinetics of the oxidation reaction showed first‐order dependence on each reactant concentration and increased by increasing pH over the 3.80–4.80 range, 35–50°C, and decreased by increasing the ionic strength over the 0.1–0.5 mol dm−3 range. The polymerization of acrylonitrile was taken as an evidence for an inner‐sphere mechanism through the formation of free radical intermediates of Co(III) complexes, which were slowly converted to the final Co(III)products.
An introduction to the contemporary breeding of oil seed rape
Authors: Wood Tom , Teakle Graham , Mackay Ian 
Published: October 2015

AbstractPlant breeding settled into its modern form a little over 100 years ago. Recent developments in genetics and genomics will not revolutionise this process but will increase the rate at which progress is made. Genetic manipulation could make great changes, though not in Europe until public opinion changes. Ironically, of all the methods used to introduce novel variation into crops, it is arguably the most benign.
Factors affecting the microstructural stability and durability of thermal barrier coatings fabricated by air plasma spraying
Authors: Helminiak M. A. , Yanar N. M. , Pettit F. S. , Taylor T. A. , Meier G. H. 
Published: October 2015

AbstractThe high‐temperature behavior of high‐purity, low‐density (HP‐LD) air plasma sprayed (APS) thermal barrier coatings (TBCs) with NiCoCrAlY bond coats deposited by argon‐shrouded plasma spraying is described. The high purity yttria‐stabilized zirconia resulted in top coats which are highly resistant to sintering and transformation from the metastable tetragonal phase to the equilibrium mixture of monoclinic and cubic phases. The thermal conductivity of the as‐processed TBC is low but increases during high temperature exposure even before densification occurs. The porous topcoat microstructure also resulted in good spallation resistance during thermal cycling. The actual failure mechanisms of the APS coatings were found to depend on topcoat thickness, topcoat density, and the thermal cycle frequency. The failure mechanisms are described and the durability of the HP‐LD coatings is compared with that of state‐of‐the‐art electron beam physical vapor deposition TBCs.
Oxide scale formation and subsurface phase transformations during long‐term steam exposure of the cobalt base alloy 25
Authors: García Fresnillo L. , Chyrkin A. , Hüttel T. , Böhme C. , Barnikel J. , Grüner D. , Schmitz F. , Quadakkers W.J. 
Published: October 2015

AbstractHigh chromium nickel and cobalt base alloys are presently being considered as construction materials for various components in high efficiency steam turbines with envisaged operating temperatures around 700 °C. In the present study, the steam oxidation behavior of the cobalt base alloy 25 in the temperature range 650–800 °C was investigated whereby exposures up to 10 000 were carried out. Post exposure analyses of the oxidation products and alloy microstructures included optical microscopy, scanning and transmission electron microscopy, X‐ray diffraction analysis and secondary neutrals mass spectrometry. The experiments showed in all cases formation of oxide scales mainly consisting of chromia with minor amounts of outer Cr/Mn spinel and internal silica. The oxidation induced chromium depletion resulted in a number of microstructural changes in the subsurface depletion layer. First, the intermetallic phase Co3W became enriched at the scale alloy interface. Additionally, the chromium rich M23C6 and the tungsten rich M6C dissolved in the depletion layer. The mechanisms for occurrence of these effects are discussed on the basis of phase equilibria in the binary Co–W and the ternary Co–Cr–W system.
The Commodification of Self‐Esteem: Branding and British Teenagers
Authors: Isaksen Katja Jezkova , Roper Stuart 
Published: October 2015

ABSTRACTThis study explores the role of consumption in the lives of British adolescents, with a particular focus on its role in forming and maintaining self‐esteem. Through a large qualitative study, over 100 adolescents revealed their attitudes and feelings toward consumption—particularly fashion. It was found that as a result of peer pressure and the importance of conformity among adolescents, consuming the correct possessions at the right time, is essential for social acceptance, gaining and maintaining friendships and thus self‐esteem. This paper argues that self‐esteem has been commodified. The consequences of failing to “keep up” with consumption trends were revealed; these include social exclusion, negative peer evaluation, and reduced self‐esteem. Moreover, these negative consequences were particularly pronounced among adolescents from low‐income families who, in contrast to their financial status, were eager to purchase the more expensive brands. Adolescents appear to have a striking awareness of the role of branding, advertising, and peer pressure in forming their consumption attitudes, yet they are unable to resist them. The findings from this study highlight the need for a rethinking of the more traditional components of adolescent self‐esteem.
Predicting Consumer Behavior and Media Preferences: The Comparative Validity of Personality Traits and Demographic Variables
Authors: Sandy Carson J. , Gosling Samuel D. , Durant John 
Published: October 2015

ABSTRACTIt is common practice for organizations selling a product to divide potential consumers into segments to allow them to target those most likely to buy their products. Two broad approaches to market segmentation can be delineated. The most common approach relies on segmenting by demographic variables (e.g., age, gender). The second approach (known as “psychographics”) identifies market divisions in terms of psychological variables such as values, attitudes, and personality traits. There has been little research comparing the efficacy of the two approaches. Based on analyses of over 45,000 participants, the present research empirically compares the effectiveness of the two approaches among segmentation variables ranging from cell phones and lottery tickets to newspapers and television shows. Overall, both approaches explained surprisingly small amounts of variance in consumer behavior. Nonetheless, for the variance that was predictive, the relative contribution of demographics and psychographics varied dramatically across consumer behaviors; for some behaviors (e.g., electronic purchases), demographics had superior predictive potential but for others (e.g., television shows) psychographics were more useful. Therefore, an approach that integrates both methods is recommended.
Measurement Characteristics of Aaker's Brand Personality Dimensions: Lessons to be Learned from Human Personality Research
Authors: Eisend Martin , Stokburger‐Sauer Nicola E. 
Published: October 2015

ABSTRACTBy referring to research on the measurement of the Big Five personality factors, this article investigates measurement characteristics of brand personality (BP) dimensions. The authors apply a meta‐analysis and investigate the intercorrelations and reliabilities of the BP dimensions of Sincerity, Excitement, Competence, Sophistication, and Ruggedness, as suggested by Aaker (1997). Similar to the Big Five personality factors, the measurement of BP reveals interdependence of the dimensions and one General Personality Factor. Furthermore, the reliabilities reveal instability across method characteristics, for instance, the use of facets as opposed to traits in measuring BP drives up the reliabilities of those dimensions with a larger number of items (e.g., Sincerity). Finally, as with the Big Five, the BP dimensions show differential effects on performance measures (as assessed by brand attitude) and thus support the predictive power of the single dimensions. The findings provide insights into the dimensional structure of BP and its stability, and support the transferability of the Big Five personality factors to nonhuman domains. Importantly, the article outlines relevant avenues for future research on BP measurement.
Comprehensive Microstructure and Molar Mass Analysis of Polybutadiene by Multidimensional Liquid Chromatography
Authors: Maiko Khumo , Pasch Harald 
Published: October 2015

For the first time, polybutadiene is separated according to microstructure using solvent gradient interaction chromatography (SGIC). Superior separation of polybutadienes having different microstructures is obtained on a silica‐based reversed stationary phase and a mobile phase of acetone–hexane. This SGIC system enables the baseline separation of 1,2‐polybutadienes and 1,4‐polybutadienes even in cases where the samples have similar molar masses. 2D liquid chromatography is performed with the SGIC method separating according to microstructure in the first dimension coupled to size exclusion chromatography separating according to molar mass in the second dimension, thus providing comprehensive information on both microstructure and molar mass.
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Wind turbulence estimates in a valley by coherent Doppler lidar
Authors: Krishnamurthy Raghavendra , Calhoun Ronald , Billings Brian , Doyle James 
Published: October 2015

AbstractIn this paper, the effect of several turbulence parameters during various flow conditions in Owens Valley, educed from coherent Doppler lidar data have been studied. Radial velocity structure functions are processed to estimate the turbulent kinetic energy (TKE) dissipation rate, integral length scale and velocity variance, assuming a theoretical model for isotropic wind fields. Corrections for turbulence measurements have been considered to address the complications due to inherent volumetric averaging of radial velocity over each range gate, noise of the lidar data, and the assumptions required to estimate effects of smaller scales of motion on turbulence quantities. Using data from the Terrain‐induced Rotor Experiment (T‐REX) in April–May 2006, vertical profiles of wind and turbulence parameters have been retrieved. During T‐REX, unusual valley flows were detected by the lidar data, for example on 19 and 27 March 2006, daytime down‐valley and night time up‐valley flows, respectively, were observed. This paper focuses on understanding various turbulence parameters during these flow events. Turbulence estimates during daytime down‐valley conditions were observed to be constant for most of the day, while for night time up‐valley circumstances the turbulence increased steadily as the day progressed. Good comparison was observed between lidar and tower measurements, which validate the lidar turbulence retrieval assumptions. Comparison between TKE estimates from lidar and the Coupled Ocean/Atmosphere Mesoscale Prediction System (COAMPS) model is also presented. This analysis will be helpful for improving the current turbulence parameterization schemes in COAMPS. Finally, differences and similarities in turbulence measurements between both the flow regimes are discussed. Copyright © 2011 Royal Meteorological Society
Optical generation of microwave signal using fiber Bragg gating‐based double‐ring fiber laser assisted by saturable absorber
Authors: Sun Qizhen , Wang Jian , Wo Jianghai , Li Xiaolei , Liu Deming 
Published: October 2015

AbstractWe propose and demonstrate a simple approach to optical generation of microwave signal by exploiting a uniform fiber Bragg gating (FBG)‐based double‐ring laser and a saturable absorber.Parallel arranged uniform FBGs have a wavelength spacing corresponding to the microwave signal. A piece of unpumped polarization‐maintaining erbium‐doped fiber (EBF) serves as a saturable absorber, ensuring the dual‐wavelength single longitudinal mode operation. Stable dual‐wavelength single longitudinal mode lasers are obtained in the experiment. A microwave signal at 28.38 GHz is successfully generated by beating the dual‐wavelength single longitudinal mode lasers. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:2478‐2481, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26303
Reconfigurable microstrip monopole patch antenna with electromagnetic band‐gap structure design for ultrawideband wireless communication systems
Authors: Elsheakh Dalia N. , Elsadek Hala A. , Abdallah Esmat A. 
Published: October 2015

AbstractNew design for compact reconfigurable microstrip monopole patch antenna with ultrawideband (UWB) operation for wireless communication is presented in this paper.The proposed antenna design is capable of electronically rejecting various groups of operating frequency bands according to the surrounding interference. The reconfigurable proposed antenna consists of parallel V‐shaped monopole structure and electromagnetic band‐gap structure integrated with p‐i‐n doping structure device (PIN diode) switches. The switches are to reject certain frequency. The operating bandwidth extends from 0.6 to 30 GHz without discontinuities (at 10 dB reflection coefficient). By inserting a PIN diode switches, the printed open slots of the UWB antenna are closed to reject different frequencies of bluetooth and wireless LAN bands. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:2466–2471, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26317
Fuzzy logic‐based automatic gain controller for EDFA
Authors: Yucel Murat 
Published: October 2015

AbstractIn this study, the fuzzy logic (FL)‐based automatic gain controller (AGC) is designed to obtain a fixed gain level of erbium‐doped fiber amplifiers along C band based on experimental results. A FL‐AGC with two inputs and one output is considered where the inputs are signal power and signal wavelength and the output is the pump laser current. The output gain variations are examined by varying both input signal levels from −15 to −35 dBm and signal wavelength from 1526 to 1564 nm. The results are well kept within 30‐dB gain level with a ripple of ±0.1 by using FL‐AGC circuit. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:2703–2705, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26318
Reconfigurable 3D beam steering for intelligent antenna system
Authors: Ha Sang Jun , Jung Chang Won , Kim Yongjin 
Published: October 2015

AbstractA reconfigurable three‐dimensional beam steering antenna for intelligent antenna system is presented. The proposed antenna is composed of a triangle loop antenna and two bended dipole antennas with four switches to steer the antenna beam patterns in both of the x–y and x–z planes. The operation frequency of the antenna is 2.5 GHz. The peak gain values are 1.04–2.06 dBi. The overall half‐power beam width (HPBW) is about 160° in both of the x–y and x–z planes. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:2615–2619, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26322
Boundary condition for the efficient excitation and absorption of hybrid waveguide modes in finite element formulations
Authors: Tsilipakos Odysseas , Kriezis Emmanouil E. , Yioultsis Traianos V. 
Published: October 2015

AbstractA boundary condition capable of efficiently exciting and absorbing hybrid waveguide modes is derived for use in the context of the finite element method.Its performance is assessed in two cases, that is, a silicon and a plasmonic waveguide, and compared with that of the standard absorbing boundary condition. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:2626–2631, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26364
A mixed bias‐mode power amplifier for WCDMA applications
Authors: Lee Dong‐Ho , Hwan An Kyu , Lee Ockgoo , Kim Hyungwook , Lee Chang‐Ho , Laskar Joy 
Published: October 2015

AbstractA wideband code‐division multiple access (WCDMA) CMOS power amplifier with a mixed bias‐mode scheme has been developed to meet high linearity and low‐quiescent current requirements at the same time. The power stage of the two‐stage power amplifier consists in three identical differential pairs that are selectively biased with a fixed bias mode or an adaptive bias mode. Each output power of three differential pairs is combined with an on‐chip transformer to achieve output power requirement. The developed power amplifier shows 25.7% of power‐stage drain efficiency at 27 dBm of output power with −33 dBc ACLR at 5 MHz offset in 1.95 GHz. The quiescent current of the mixed bias‐mode power stage was 81 mA, whereas, it is 212 mA with the fixed bias mode. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:2547–2552, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26367
Compact Dual Sinc‐Shaped Monopole Antenna for Dual Band Wireless Applications
Authors: Badhai Ritesh Kumar , Gupta Nisha 
Published: October 2015

ABSTRACTIn the presented work, a simple printed compact dual Sinc‐shaped monopole antenna suitable for dual‐band operation is proposed for portable wireless devices. The proposed antenna consists of dual Sinc configuration: one a Sinc‐shaped radiating strip and another Sinc‐shaped sleeve in the ground plane. The antenna operates at dual frequency bands, 2245–2635 MHz, and 4589–5112 MHz, showing 10 dB fractional impedance bandwidths of 16 and 10.8%, respectively. A simple approximate formula for the first two resonant frequencies is also presented. Finally, A prototype model is developed for the proposed configuration and the simulated results are validated experimentally. The antenna is found to be suitable for long term evolution handheld devices, WiMAX, WLAN, and public safety land mobile. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:2883–2888, 2013
Widely Tunable Fiber Bragg Grating and its Application in Fiber Lasers
Authors: Drainville Robert A. , Das Gautam 
Published: October 2015

ABSTRACTThe article describes a simple design to make a widely tunable fiber Bragg grating (FBG) filter with a minimum tuning range of 0.02 nm, and its application to develop a widely tunable, single‐longitudinal‐mode, medium‐power fiber laser. The tunable grating was developed using a commercially available FBG. The maximum tuning range of the laser was 35 nm, which was due to the available gain from the laser gain medium. The laser was operating at room temperature. The laser was free from mode hopping and produced more than 300 mW output power at room temperature. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:2824–2826, 2013
Anxiety disorders and comorbid depression in community dwelling older adults
Authors: Hek Karin , Tiemeier Henning , Newson Rachel S. , Luijendijk Hendrika J. , Hofman Albert , Mulder Cornelis L. 
Published: October 2015

AbstractAnxiety disorder is a common psychiatric problem during late‐life, and frequently co‐occurs with depression. High comorbidity between anxiety and depression may partly be explained by the definition of the disorders and the assessment of both disorders with one instrument at the same time. The current study investigates the relation of current and past depression with anxiety disorders in the Rotterdam Study, a large population‐based cohort study of older adults in the Netherlands (n study population = 5565). DSM‐IV anxiety disorder was ascertained with the Munich version of the Composite International Diagnostic Interview. DSM‐IV depression was diagnosed with the Schedules for Clinical Assessment of Neuropsychiatry (SCAN) on a different day. Past depression was assessed from general practitioners' records, self‐report, and a prior SCAN interview. Of the 457 persons with an anxiety disorder, 11.6% had a comorbid major depression, and another 6.3% had other depressive syndromes. However, 49.3% of persons with an anxiety disorder experienced or had in the past experienced a depressive episode. Our study suggests that comorbid depression in older adults with anxiety disorders may be less prevalent than previously suggested. However, the relation of current anxiety disorders with past depression is substantial. Copyright © 2011 John Wiley & Sons, Ltd.
Assessing the effect of a guideline change on drug use prevalence by including the birth cohort dimension: the case of benzodiazepines
Authors: Bijlsma Maarten J. , Hak Eelko , Bos Jens , De Jong‐van den Berg Lolkje T. W. , Janssen Fanny 
Published: October 2015

ABSTRACTPurposeThe aim of this study was to investigate whether including the birth cohort dimension in time series analysis leads to a more accurate estimation of the (long‐term) effect of a guideline change on the trend of benzodiazepine use.MethodsWe calculated age‐specific (20–84 years) and sex‐specific prevalence of benzodiazepine use per 1000 population per quarter year (1998 to 2008) using a prescription database set in the Netherlands. We studied the prevalence over time by age group and within birth cohorts through interrupted time series analyses to estimate the effect of the guideline change in 2001.ResultsFrom 1998 to 2008, the overall age‐standardized prevalence of benzodiazepine use per 1000 population declined from ~54 for men and ~107 for women to ~45 for men and ~85 for women. The relative change increased significantly after 2001 for both sexes and for the majority of age groups. Within birth cohorts, the prevalence increased with age until the year 2001 and leveled thereafter. The age–period approach overall had worse model fit indicators than the within‐cohort approach and predicted larger long‐term effects than the within‐cohort approach. The age–period projection estimated 36% decline in benzodiazepine use relative to 2008, whereas the birth‐cohort projection estimated 8% decline.ConclusionExplicitly following birth cohort trajectories led to models with better fit; the conventional approach estimated a stronger long‐term guideline effect. This has important implications for professional practice. Copyright © 2013 John Wiley & Sons, Ltd.