bluuebunny/crossref_metadata_2025_split huggingface dataset:
Carotenoid bioaccessibility from nine raw carotenoid‐storing fruits and vegetables using an in vitro model
Authors: Jeffery Jennifer L , Turner Nancy D , King Stephen R 
Published: July 2012

AbstractBACKGROUND: Many techniques exist for processing fruits and vegetables. The impact of these processes on nutritional qualities of the food can be considerable, however. Given the benefits of eating raw foods, nutrient sources need to be identified that deliver substantial benefit without cooking. In this study a survey of carotenoid bioaccessibility was carried out in order to additionally evaluate the impact of their distinctive storage structures (chromoplasts) on bioaccessibility.RESULTS: Per cent carotenoid bioaccessibility varied among the nine raw, whole fruits and vegetables evaluated, with values of 1–39% for lycopene, 18–20% for α‐carotene, 7–49% for β‐carotene, 9–59% for lutein, 4–22% for violaxanthin and 47–96% for phytoene. Per 100 g of food, grapefruit and watermelon imparted the most lycopene (69 and 64 µg respectively), carrot the most α‐carotene (559 µg), β‐carotene (1078 µg), lutein (91 µg) and phytoene (23 mg) and mango the most violaxanthin (177 µg). Digestive stability averaged over 80%, except for the xanthophylls, which exhibited a wider and lower range of stabilities.CONCLUSION: These data identify raw food sources for carotenoid bioaccessibilities comparable to those of other foods accomplished by substantial processing. The information presented here also has application in identifying appropriate plant‐breeding goals and optimal sources for commercial carotenoid isolations. Copyright © 2012 Society of Chemical Industry
Patient reasoning in palliative surgical oncology
Authors: Collins Lindsey K. , Goodwin Julia A. , Spencer Horace J. , Guevara Caesar , Ferrell Betty , McSweeney Jean , Badgwell Brian D. 
Published: July 2012

AbstractBackgroundThe purpose of this study was to determine the patient reasoning behind treatment choice after palliative surgical consultation.MethodsPatients undergoing palliative surgical consultation were prospectively enrolled in this observational cohort study (11/2009–5/2011) and administered an open‐ended questionnaire asking for their reasoning in choosing their treatment strategy.ResultsOf 98 patients enrolled, 54 were treated non‐operatively and 44 with surgery. Patient responses indicating their reason for treatment selection were categorized into (1) quality of life or symptom relief, (2) unclear or response not related to treatment strategy, (3) increase length of life, (4) treat the cancer, (5) concerns over surgical complications, (6) doctor's recommendation, (7) religious reasons for treatment choice, and (8) for family. The most frequently cited reason for treatment selection was symptom relief or quality of life improvement in 46 patients. Thirty‐eight patients cited their doctor's recommendation while 20 patients selected their treatment to increase length of life or treat their cancer. Only 2 patients cited concerns over surgical complications as their reason for choosing their treatment strategy.ConclusionsThe most common reasons for treatment selection in palliative surgical consultation include symptom relief or improvement in quality of life and the doctor's recommendation with few patients listing concerns over surgical morbidity. J. Surg. Oncol. 2013;107:372–375. © 2012 Wiley Periodicals, Inc.
Proximal tibial resections and reconstructions: Clinical outcome of 225 patients
Authors: Mavrogenis Andreas F. , Pala Elisa , Angelini Andrea , Ferraro Andrea , Ruggieri Pietro 
Published: July 2012

AbstractBackgroundPrevious studies reported variable outcome of proximal tibial resections and reconstructions. Therefore, we evaluated the survival, Musculoskeletal Tumor Society (MSTS) function, and complications of patients and reconstructions in this location.Materials and MethodsWe reviewed the files of 225 patients with proximal tibial tumors treated with proximal tibial resection, fixed or rotating hinge megaprosthetic reconstruction and extensor mechanism reattachment using sutures, mechanical clamping, artificial ligaments, and/or gastrocnemius flap from 1985 to 2010 (mean follow‐up, 90 months; median, 56; range, 2–294). Survival of patients and reconstructions, type of hinge, extensor mechanism reconstruction, MSTS function, and complications were analyzed.ResultsSurvival of patients with sarcomas was 68% and 62% at 5 and 10 years. Survival of megaprosthetic reconstructions was 82% and 78% at 5 and 10 years, without any difference between fixed and rotating hinge megaprostheses. MSTS function was significantly better in univariate and multivariate analysis for rotating compared to fixed hinge megaprostheses, without any difference between the types of extensor mechanism reconstructions. Most common complications were infection (12%), aseptic loosening (6%), and extensor mechanism rupture (3%).ConclusionsRotating hinge proximal tibia megaprosthetic reconstructions have better function compared to fixed hinge, regardless of the type of extensor mechanism reconstruction. J. Surg. Oncol. 2013;107:335–342. © 2012 Wiley Periodicals, Inc.
Exploring the Moderating Effects of Value Offerings Between Market Orientation and Performance in Tourism Industry
Authors: Chen Ching‐Fu , Myagmarsuren Odonchimeg 
Published: July 2012

ABSTRACTMarket orientation as a business strategy has recently been adopted in the travel and tourism industry, as well as other industries, to enhance performance. Value offerings have also emerged as a new research interest within the strategic marketing domain. Based on the theory of strategy–environment fit, this study investigates the relationship between market orientation (i.e. customer and competitor orientations) and performance, and the moderating role of value offerings (i.e. service emphasis and price emphasis), using a sample of 132 Taiwanese travel agencies. The research results obtained from hierarchical regression analyses indicate that only both customer and competitor orientations, but not value offerings, have positive and direct effects on performance. However, the results show that one dimension of value offerings, i.e. service emphasis, has a moderating role in the market orientation‐performance relationship. The managerial implications of these results are also discussed. Copyright © 2012 John Wiley & Sons, Ltd.
High‐Performance Pristine Graphene/Epoxy Composites With Enhanced Mechanical and Electrical Properties
Authors: Wajid Ahmed S. , Ahmed H. S. Tanvir , Das Sriya , Irin Fahmida , Jankowski Alan F. , Green Micah J. 
Published: July 2012

AbstractHigh‐strength conductive pristine graphene/epoxy composites are prepared by two simple processing methods – freeze dry/mixing and solution processing. PVP‐stabilized graphene is aggregation‐resistant and allows for excellent dispersion in both the resin and final composite, as confirmed by optical microscopy and SEM images. The superior dispersion quality results in excellent nanofiller/matrix load transfer, with a 38% increase in strength and a 37% improvement in modulus for 0.46 vol% graphene loading. The composites have a very low electrical percolation threshold of 0.088 vol%. Despite the effectiveness of both methods, the freeze‐drying method is more promising and versatile enough to be used for graphene dispersion in a wide range of other composite precursors. magnified image
A 28/56 GHz dual‐band CMOS VCO using reversely tunable LC source degeneration and the push–push technique
Authors: Lin Yo‐Sheng , Yu Po‐Wei 
Published: July 2012

AbstractA 28/56 GHz dual‐band voltage‐controlled oscillator (VCO) using reversely tunable LC source‐degeneration and the push–push technique is demonstrated in a standard 0.13 μm CMOS process. The reversely tunable LC source degeneration is made by adding two reversely tunable LC tanks, which use varactors as the needed capacitors, to the source terminals of the cross‐coupled transistor pair of the VCO. Compared with the traditional cross‐coupled transistor pair, the proposed one significantly decreases the equivalent parallel capacitance (CEQ). This in turn results in the increase of both the operation frequency and the tuning range of the VCO. The VCO core draws 10.48 mA current from a 0.9 V power supply, that is, it only consumes 9.43 mW. The VCO achieves a tuning range of 27.7–28.7 GHz at the fundamental port and a tuning range of 55.176–58.124 GHz at the push–push port. In addition, at the fundamental port, the VCO achieves a low phase noise of −120.46 dBc/Hz at 1‐MHz offset from 28.19 GHz. The corresponding figure‐of‐merit is −199.7 dBc/Hz, one of the best results ever reported for a K‐band or Ka‐band CMOS VCO. The circuit occupies a chip area of 0.724 × 0.681 mm2, that is, 0.493 mm2, including the test pads. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:2272–2278, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27046
Wideband multilayer directional coupler with tight coupling and high directivity
Authors: Djordjević Antonije R. , Napijalo Veljko M. , Olćan Dragan I. , Zajić Alenka G. 
Published: July 2012

AbstractA novel, wideband, symmetrical, printed directional coupler is described, which has tight coupling and high directivity. The coupler consists of four interconnected strips printed in two layers. The dimensions of the strips are optimized to minimize the dispersion of propagating modes. Design data are provided for some typical practical cases. The theoretical results are verified experimentally. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:2261–2267, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27051
Investigation of radiation patterns of longitudinally oriented slot antenna array for imaging radar applications
Authors: Kang Woong , Lee Seokjae , Kim Kangwook 
Published: July 2012

AbstractA longitudinally oriented slot antenna array for imaging radar applications is designed and its performance was investigated. When constructing a two‐dimensional physical array to image a target, arranging the antenna in a longitudinal direction can be problematic due to the limited space for antennas. Hence, when arranging slot elements in a longitudinal direction, the proposed antenna array is designed such that two slot elements share a single slot arm, which achieves proper element spacing. In this letter, as a proof‐of‐concept, a two‐port longitudinally oriented slot antenna array is designed. The initial array shows radiation pattern distortion, which can have a negative effect on radar sensing. Several geometric modifications to correct the distorted radiation pattern are then introduced and the performance after modifications is measured. The results show that the modified antenna array structure can be useful in imaging radar applications. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:2408–2412, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27055
Linearly polarized elliptical microstrip antenna with improved polarization purity and bandwidth characteristics
Authors: Kumar Chandrakanta , Guha Debatosh 
Published: July 2012

AbstractElliptical microstrip patch, etched on a grounded PTFE substrate, has been examined here for the first time as a linearly polarized (LP) antenna. All earlier investigations dealt with only circularly polarized design. Inherent shortcoming of poor polarization purity has been alleviated using the newly developed approach of using defected ground structure. Apart from a design guideline, a comprehensive study using a set of prototypes with different eccentricity values has been provided. Possibility of using elliptical patch as a new LP radiating element with improved features relative to an identical circular microstrip has been documented for the first time. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:2309–2314, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27056
Design of a novel ultrawideband antenna with dual band‐notched characteristics
Authors: Chen Bin , Wang An‐Guo , Zhao Guo‐Huang 
Published: July 2012

AbstractA simple printed ultrawideband (UWB) antenna with reconfigurable band‐rejected characteristics is proposed. The antenna was fabricated on an FR‐4 epoxy substrate and has a volume of 40.0 × 32.0 × 1.0 mm3. The simulated and measured results show that the antenna has nearly omnidirectional patterns, stable gain, and an available impedance bandwidth of 9.38 GHz which covers 2.34–11.72 GHz. By etching two slots in the radiator, band‐ notched features centered at 3.5 and 5.5GHz are achieved. With adding two microelectromechanical system switches across slots, the band‐rejected characteristics can be reconfigurable and the proposed antenna is capable of operating among none or single or dual band‐notched modes. Meanwhile, to discuss the mechanisms of the band‐rejected properties, the conceptual equivalent circuit models are presented. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:2401–2405, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27061
Band‐notched UWB planar monopole antenna using slotted conductor‐backed plane
Authors: Moradhesari Amin , Moosazadeh Mahdi , Esmati Zahra 
Published: July 2012

AbstractIn this letter, a planar antenna with band‐notched characteristic is designed for ultrawideband application.Distinctive features of this antenna in comparison with the other reported antennas are the compact dimensions and omnidirectional radiation across the whole band of operation using slotted conductor‐backed plane. The ground plane is located at the bottom layer, which also includes a Γ‐shaped conductor‐backed plane used to widen the impedance bandwidth. Also, band‐notched characteristic is achieved by a Γ‐shaped form inside the slotted conductor‐backed plane. The measured results of the manufactured (18 × 18 mm2) antenna on 0.8‐mm FR4 substrate show that the antenna operates with VSWR less than 2 over the frequency band from 3.05 to 12.9 GHz, except a frequency notched band of 3.3–4.3 GHz. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:2237–2241, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27063
Experimental analysis on the response of long period grating to refractive indices higher and lower than that of fiber cladding
Authors: Libish T. M. , Bobby M. C. , Linesh J. , Nampoori V. P. N. , Radhakrishnan P. 
Published: July 2012

AbstractThe response of the long period grating (LPG) to refractive indices greater than and less than that of cladding is studied by monitoring the wave length shift and amplitude changes of the attenuation bands. The fundamental principle of analysis is the sensitive dependence of the resonance peaks of an LPG on the changes in the refractive index of the medium surrounding the cladding surface of the grating. An LPG with grating period 550 μm written into the core of a hydrogen loaded standard telecommunication fiber (SMF‐28e) is used to carry out the experimental study. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:2356–2360, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27068
Highly integrated, two‐in‐one, metal‐plate PIFA for 2.4‐GHz module applications
Authors: Su Saou‐Wen , Lee Cheng‐Tse 
Published: July 2012

AbstractA novel, two‐in‐one, planar inverted‐F antenna (PIFA) having two signal feeding ports to operate in the 2.4 band for wireless module applications is proposed. The PIFA was of a symmetrical structure and can be fully integrated into the printed circuit board (PCB) of the module by through‐hole soldering. The design was comprised of two sub‐antennas of identical size and had two shorting portions linked by a horizontal strip. This structure allows the antenna to be stamped from one metal plate only at low cost and surface mountable as a dual‐in‐line package (DIP) component with four leads. Further, by incorporating a decoupling, neutralization line shunted at around the two shorting portions, the antenna port isolation less than −20 dB over the 2.4 GHz band can be achieved. The radiating strip of the PIFA mainly extended along the edge of the PCB, and the neutralization line in this study occupied very little board space. Details of the design prototypes are described and discussed in the article. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:2433–2438, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27071
A novel inconsistency condition for 2‐port vector network analyzer calibration
Authors: Shoaib Nosherwan 
Published: July 2012

AbstractAn inconsistency condition for 2‐port vector network analyzer (VNA) calibration is presented.This inconsistency condition discussed the use of Reciprocal device and Line or Thru for calibration of 2‐port VNA. Mathematical analysis is carried out. The experimental results are compared with well known calibration algorithms like Thru‐Short‐Delay, Thru‐Reflect‐Line, Short‐Open‐Load‐ Reciprocal, and Thru‐Short‐Match. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:2372–2375, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27072
Dual‐band CMOS voltage‐controlled oscillator with comparable outpower at both bands
Authors: Jang Sheng‐Lyang , Tu Do Anh , Chang Chia‐Wei , Huang Jhin‐Fang 
Published: July 2012

AbstractA low phase noise dual‐band voltage‐controlled oscillator (VCO) is proposed to achieve large voltage swings at both high‐frequency and low‐frequency bands. The VCO consists of a dual‐resonance LC resonator and a cross‐coupled switching transistor pair. The dual‐resonance LC resonator comprises a parallel‐tuned LC resonator and a series‐resonant resonator. The proposed VCO has been implemented with the TSMC 0.18‐μm 1P6M CMOS technology and the core power consumption is 1.99 mW at the DC drain‐source bias of 0.51 V. The VCO can generate differential signals in the frequency range of 8.19–8.77 GHz and 3.38–3.84 and it also has comparable high output voltage swings at both low‐ and high‐frequency bands. The die area of the dual‐band VCO is 0.47 × 0.748 mm2. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:2349–2352, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27097
Reconstruction of the scattering support of dielectric objects from near field data
Authors: Gragnani Gian Luigi , Mendez Maurizio Diaz 
Published: July 2012

AbstractA method for reconstructing the convex scattering support of dielectric objects from near field data is presented.Two different strategies for solving the problem are discussed. The usual reconstruction of the convex scattering support is extended introducing a fast near field to far field transformation based on the analytical expression of an equivalent source in a circular domain. Results of both single and multiview approaches are shown. To evaluate the reconstruction capabilities, some quality parameters are introduced. Single view results could be subjected to detriment at some specific angles of propagation of the incident field, and this is related both to the angle of propagation and to the presence of sharp corners in the object. Multiview results always enclose the dielectric scatterers inside a scattering support smaller than the original investigation domain. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:2314–2321, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27098
Erratum: Periodic substrate structure suppresses spurious response in coupled line filters
Authors: Saeidi Chiya , van der Weide Daniel 
Published: July 2012

AbstractOriginally published Microwave Opt Technol Lett 54: 2175–2178, 2012. @ 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54: 2446, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27101(Original article DOI 10.1002/mop.26999)
Lipid suppression in CSI with spatial priors and highly undersampled peripheral k‐space
Authors: Bilgic Berkin , Gagoski Borjan , Kok Trina , Adalsteinsson Elfar 
Published: July 2012

AbstractMapping 1H brain metabolites using chemical shift imaging is hampered by the presence of subcutaneous lipid signals, which contaminate the metabolites by ringing due to limited spatial resolution. Even though chemical shift imaging at spatial resolution high enough to mitigate the lipid artifacts is infeasible due to signal‐to‐noise constraints on the metabolites, the lipid signals have orders of magnitude of higher concentration, which enables the collection of high‐resolution lipid maps with adequate signal‐to‐noise. The previously proposed dual‐density approach exploits this high signal‐to‐noise property of the lipid layer to suppress truncation artifacts using high‐resolution lipid maps. Another recent approach for lipid suppression makes use of the fact that metabolite and lipid spectra are approximately orthogonal, and seeks sparse metabolite spectra when projected onto lipid‐basis functions. This work combines and extends the dual‐density approach and the lipid‐basis penalty, while estimating the high‐resolution lipid image from 2‐average k‐space data to incur minimal increase on the scan time. Further, we exploit the spectral‐spatial sparsity of the lipid ring and propose to estimate it from substantially undersampled (acceleration R = 10 in the peripheral k‐space) 2‐average in vivo data using compressed sensing and still obtain improved lipid suppression relative to using dual‐density or lipid‐basis penalty alone. Magn Reson Med, 2013. © 2012 Wiley Periodicals, Inc.
Tolerant identification with Euclidean balls
Authors: Junnila Ville , Laihonen Tero , Parreau Aline 
Published: July 2012

AbstractThe concept of identifying codes was introduced by Karpovsky, Chakrabarty and Levitin in 1998. The identifying codes can be applied, for example, to sensor networks. In this article, we consider as sensors the set
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where one sensor can check its neighbors within Euclidean distance r. We construct tolerant identifying codes in this network that are robust against some changes in the neighborhood monitored by each sensor. We give bounds for the smallest density of a tolerant identifying code for general values of r. We also provide infinite families of values r with optimal such codes and study the case of small values of r. © 2012 Wiley Periodicals, Inc. NETWORKS, 2013
Immune markers of disease severity and treatment response in pediatric acquired aplastic anemia
Authors: Sutton Kathryn S. , Shereck Evan B. , Nemecek Eneida R. , Kurre Peter 
Published: July 2012

AbstractBackgroundTo investigate the immune status among pediatric patients with aplastic anemia (AA) and explore PNH‐status, T‐regulatory and NK‐cell frequency as potential markers of clinical response.MethodsData were retrospectively analyzed from twenty‐six patients diagnosed with AA. PNH populations, T‐ and NK‐subsets were determined via flow cytometry.ResultsAt diagnosis, 9/23 patients with severe AA (SAA) versus 1/3 with moderate AA (MAA) were PNHpos. Among PNHpos patients treated with ATG based immunosuppression, 2/6 had a complete response (CR), while 4/6 had a partial response (PR), similarly 2/6 PNHneg patients had a CR and 4/6 had a PR. Lymphocyte subset immunophenotyping revealed that T‐regulatory cells represented 7.2% of total lymphocytes at diagnosis. Their frequency varied with disease severity (5.5% for SAA and 14.1% for MAA) and response (8.9% for CR and 1.5% for PR), generally increasing following therapy with IST (14.6%). The NK cell frequency was not substantially different based on disease severity or response.ConclusionsNeither PNH cell populations, nor NK cell frequency corresponded with disease severity or response. T‐regulatory cell frequency, although not statistically significant given the small sample size, corresponded with both severity and response, indicating potential utility as a prognostic tool. Pediatr Blood Cancer 2013; 60: 455–460. © 2012 Wiley Periodicals, Inc.