bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Novel Monopole Antenna for Wireless Communication Systems and UWB Application
Authors: Sefidi, M. , Zehforoosh Y. , Moradi S. 
Published: May 2013

ABSTRACTIn this article, a novel monopole antenna which consists of a radiating patch with two modified L‐shaped notches to achieve broad bandwidth is presented for various mobile communication services such as wireless broadband, wireless local area network, digital mobile broadcasting, and ultrawideband (UWB) applications. The proposed antenna is designed to operate over 2–11.2 GHz for S11 < −10 dB. Details of the proposed antenna design approach and measured results are also presented and discussed. The novel monopole antenna has wide band impedance bandwidth, compact size, and low fabrication cost, which are suitable for communication services and UWB application. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:1856–1860, 2013
Feasibility Study of E‐band mm‐Wave for Gigabit point‐to‐point Wireless Communications
Authors: Geng Suiyan , Zhao Xiongwen 
Published: May 2013

ABSTRACTIn this article, the performances of E‐band (81–86 GHz) millimeter‐wave for gigabit point‐to‐point wireless communications are studied based on experimental measurement data. Specifically, the E‐band link budget is provided by examining propagation path loss, shadow fading, and rain attenuations. A model of rain attenuation in E‐band is proposed and compared with ITU‐R recommendation model and measurement data. Communication link availability vs. coverage for different rainfall rates and antenna gain sets are investigated for providing useful information on design of systems. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:1969–1972, 2013
A Fiber Optic Faint Pressure Sensor Used in High‐Temperature Environment
Authors: Jiang Ming 
Published: May 2013

ABSTRACTA fiber optic faint pressure sensor used in high‐temperature environment is presented and experimentally demonstrated. The bulky and ruggedized pressure sensor is an extrinsic Fabry–Perot interferometer manufactured with stainless steel. A pressure sensitivity of 7.1 pm/Pa and a pressure resolution of 1.39 Pa within the measurement range from 0 to 1500 Pa have been achieved. The temperature dependence of the sensor is also investigated. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:1891–1893, 2013
Evaluation of Nonmetallic Glued Joints Based on the Resolvable Transit Times of THz Waves
Authors: Thomas, Djeisson H. , Cordes Andrew H. , von der Weid J. P. 
Published: May 2013

ABSTRACTThe quality of glued joints in nonmetallic samples was evaluated using a standard terahertz time domain spectroscopy system in the transmission configuration. We developed a method of modal analysis to complement the results obtained with those based on traditional parameters such as transmittance and spectral changes. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:1762–1765, 2013
Transmission Line Filters with Harmonic Parallel Foster Sections
Authors: Malherbe Johannes A. G. , Luus Pierre D. , Uys Johan C. 
Published: May 2013

ABSTRACTConventional wideband bandstop filters use Cauer prototypes, but become nonrealizable with Kuroda–Levy transforms for bandwidths of 150% or more. Transmission line filters with harmonic stubs have been shown to be realizable at these bandwidths, but have limited performance ranges due to the fixed positions of the transmission zeros. In this article, two structures that use shunt Foster resonators that enable the shift of the transmission zeros are described. Simulated and measured properties show that greatly improved performance can be realized while not adding to the complexity of the structure. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:1724–1728, 2013
Erratum: Wideband High‐Gain Aperture Coupled Antenna for Ku Band Phased‐Array Systems
Authors: Bilgic Mustafa Murat , Yegin Korkut 
Published: May 2013

ABSTRACTOriginally published Microwave Opt Technol Lett 55:1291–1295, 2013. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:1975, 2013; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27738 (Original article DOI 10.1002/mop.27594)
Establishing disability weights from pairwise comparisons for a US burden of disease study
Authors: Rehm Jürgen , Frick Ulrich 
Published: May 2013

AbstractTo determine valid and reliable disability weights for a U.S. burden of disease study, a convenience sample of 68 clinical experts was recruited, including representatives from over 20 NIH institutes and Centers for Disease Control and Prevention. Experts were given various health state valuation tasks including pairwise comparison, ranking, and Person Trade Off. Materials consisted of standardized descriptions of 11 attributes per health state (Classification and Measurement System of Functional Health, CLAMES). Attributes comprised up to 5 ordinal levels of disability. All states were displayed either with or without health state labels. Health state descriptions were taken from an existing comprehensive Canadian system. Conditional Logistic (CLR) and Probit Regression (PR) were used to derive disability weights. CLR and PR converged in yielding stable regression weights to construct disability weights, with a correlation of 0.816. The overall test‐retest reliability amounted to 92.5% identical decisions. No significant difference was found for the presentation of health states with or without labels. A comparison of the expert valuations from our study with a standard gamble based valuation in the general population resulted in agreement of r = 0.61. The chosen methodology yielded valid and reliable and disability weights. As it is based on a modularized set of attributes, this methodology will allow derivation of disability weights on the basis of existing descriptions using the CLAMES. Copyright © 2013 John Wiley & Sons, Ltd.
X‐Ray Tomography Imaging of Porous Polyolefin Particles in an Electron Microscope
Authors: Meisterová Lucie , Zubov Alexandr , Smolná Klára , Štěpánek František , Kosek Juraj 
Published: May 2013

AbstractAdvanced models of penetrant transport and reaction in spatially 3D porous polyolefin particles reconstructed from X‐ray µCT images require proper determination of particle morphology. Moreover, polyolefins exhibit a relatively low absorptivity for X‐rays, therefore their investigation using µCT can be difficult. In this paper, a low‐resolution µCT built into an SEM is used to examine how the µCT resolution and several user‐selected parameters associated with the scanning/reconstruction affect the resulting particle morphology. Using samples with known morphology and independent imaging techniques, the performance of the µCT device is critically assessed. Finally, a method suitable for the reliable reconstruction of polyolefin particles using low‐resolution µCT is proposed. magnified image
Faster strongly polynomial algorithms for the unbalanced transportation problem and assignment problem with monge costs
Authors: Vaidyanathan Balachandran 
Published: May 2013

AbstractWe consider a transportation problem where the cost matrix satisfies the Monge property. The problem has supply nodes N1(|N1| = n1), demand nodes N2(|N2| = n2), supply si ≥ 0 for i∈N1, and demand dj ≥ 0 for j∈N2(n = n1 + n2,m = n1n2). When the total supply is equal to the total demand, the problem can be solved in O(n) time using the northwest corner rule (Hoffman [10]). This algorithm and run‐time, however, do not extend to the unbalanced case, where the total supply is not equal to the total demand. The fastest strongly polynomial run‐time for the unbalanced transportation problem with Monge costs is O(nlog n(m + nlog n)), and for the unbalanced assignment problem (unit supplies and demands) with Monge costs is O(n(m + nlog n)). In this article, we describe a simple algorithm that solves the unbalanced transportation problem with Monge costs in O(mn1) time and the unbalanced assignment problem with Monge costs in O(m) time using elementary data structures. We also develop a faster implementation of the algorithm that utilizes a heap, a self‐balancing binary search tree, and dynamic trees, and solves the transportation problem with Monge costs in O(mlog n1) time. Our algorithms improve the run‐times for: (i) the unbalanced transportation problem with Monge costs by a factor of nlog n/log n1 or better and (ii) the unbalanced assignment problem with Monge costs by a factor of n or better. © 2013 Wiley Periodicals, Inc. NETWORKS, 2013
Complexity of a classical flow restoration problem
Authors: Nace Dritan , Pióro Michał , Tomaszewski Artur , Żotkiewicz Mateusz 
Published: May 2013

AbstractIn this article, we revisit a classical optimization problem occurring in designing survivable multicommodity flow networks. The problem, referred to as FR, assumes flow restoration that takes advantage of the so‐called stub release. As no compact linear programming (LP) formulation of FR is known and at the same time all known noncompact LP formulations of FR exhibit
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‐hard dual separation, the problem itself is believed to be
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‐hard, although without a proof. In this article, we study a restriction of FR (RFR) that assumes only elementary (cycle‐free) admissible paths—an important case virtually not considered in the literature. The two problems have the same noncompact LP formulations as they differ only in the definition of admissible paths: all paths (also those including cycles) are allowed in FR, while only elementary paths are allowed in RFR. Because of that, RFR is in general computationally more complex than FR. The purpose of this article, is three‐fold. First, the article reveals an interesting special case of RFR—the case with only one failing link—for which a natural noncompact LP formulation obtained by reducing the general RFR formulation still exhibits
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‐hard dual separation, but nevertheless this special case of RFR is polynomial. The constructed example of a polynomial multicommodity flow problem with difficult dual separation is of interest since, to our knowledge, no example of this kind has been known. In this article, we also examine a second special case of RFR, this time assuming two failing links instead of one, which turns out to be
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‐hard. This implies that problem RFR is
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‐hard in general (more precisely, for two or more failure states). This new result is the second contribution of the article. Finally, we discuss the complexity of FR in the light of our new findings, emphasizing the differences between RFR and FR. © 2013 Wiley Periodicals, Inc. NETWORKS, 2013
Low socioeconomic status and mental health outcomes in colorectal cancer survivors: disadvantage? advantage? … or both?
Authors: Andrykowski Michael A. , Aarts Mieke J. , van de Poll‐Franse Lonneke V. , Mols Floortje , Slooter Gerrit D. , Thong Melissa S.Y. 
Published: May 2013

AbstractObjectiveThe goal of this study is to examine the relationship between socioeconomic status (SES) and both positive and negative mental health (MH) outcomes in a population‐based sample of colorectal cancer survivors. On the basis of theoretical conceptualizations of trauma and posttraumatic growth, low SES was hypothesized to be positively associated with both greater negative MH outcomes (e.g., distress) and greater positive MH outcomes (e.g., growth).MethodsColorectal cancer survivors (n = 1300; 57% male; mean age 69.4 and 4.0 years post‐diagnosis) were recruited using a regional, population‐based cancer registry in the Netherlands and completed a questionnaire assessing current negative and positive MH outcomes. Low, medium, and high SES respondents were identified using an area‐level indicator of SES based on aggregated individual fiscal data on monetary home value and household income.ResultsAnalysis of covariance and logistic regression analyses indicated that low SES was a risk factor for greater negative MH outcomes. Relative to high SES survivors, low SES survivors reported poorer status on nine indices of MH, and high SES survivors were about 50% less likely to report clinically important levels of anxiety and depression. Results provided partial support for the hypothesis low SES was a ‘risk’ factor for greater positive MH outcomes. Relative to high SES survivors, low SES survivors reported greater positive MH outcomes on 2 of 5 positive MH indices examined (Positive Self‐Evaluation, Meaning of Cancer).ConclusionsStudy findings are the first to suggest that low SES might increase the likelihood of both greater negative as well as positive MH outcomes in cancer survivors. Copyright © 2013 John Wiley & Sons, Ltd.
Development and Reliability of a Clinician‐rated Instrument to Evaluate Function in Individuals with Shoulder Pain: A Preliminary Study
Authors: Roe Yngve , Haldorsen Benjamin , Svege Ida , Bergland Astrid 
Published: May 2013

AbstractBackground and PurposeSubacromial impingement syndrome (SIS) is a common and disabling condition in the population. Interventions are often evaluated with patient‐rated outcome measures. The purpose of this study was to develop a simple clinician‐rated measure to detect difficulties in the execution of movement‐related tasks among patients with subacromial impingement syndrome.MethodThe steps in the scale development included a review of the clinical literature of shoulder pain to identify condition‐specific questionnaires, pilot testing, clinical testing and scale construction. Twenty‐one eligible items from thirteen questionnaires were extracted and included in a pilot test. All items were scored on a five‐point ordinal scale ranging from 1 (no difficulty) to 5 (cannot perform). Fourteen items were excluded after pilot testing because of difficulties in standardization or other practical considerations. The remaining seven items were included in a clinical test‐retest study with outpatients at a hospital. Of these, four were excluded because of psychometric reasons. From the remaining three items, a measure named Shoulder Activity Scale (summed score ranging from 3 to 15) was developed.ResultsA total of 33 men and 30 women were included in the clinical study; age range 27–80 years. The intraclass correlation coefficient results for inter‐rater reliability and test‐retest reliability were 0.80 (95% CI = 0.51–0.90) and 0.74 (95% CI = 0.58–0.84), respectively. The standard error of measurement and minimal detectable change were 1.19 and 3.32, respectively. The scale was linked to the International Classification of Functioning, Disability and Health second level categories lifting and carrying objects (d430), dressing (d540), hand and arm use (d445) and control of voluntary movement (b760).ConclusionThe Shoulder Activity Scale showed acceptable reliability in a sample of outpatients at a hospital, rated by clinicians experienced in shoulder rehabilitation. The validity of the scale should be investigated in future studies before application to common practice. © 2013 The Authors. Physiotherapy Research International published by John Wiley & Sons Ltd.
Toxicological and biochemical response of the entomopathogenic fungus Beauveria bassiana after exposure to deltamethrin
Authors: Forlani Lucas , Juárez M Patricia , Lavarías Sabrina , Pedrini Nicolás 
Published: May 2013

AbstractBACKGROUNDThe chemical control of the Chagas disease vector Triatoma infestans is endangered by the emergence of pyrethroid resistance. An effective alternative control tool is the use of the entomopathogenic fungus Beauveria bassiana. The effect of deltamethrin on fungal growth, gene expression and enzyme activity in relation to detoxification, antioxidant response and oxidative stress levels was studied to evaluate fungal tolerance to deltamethrin.RESULTSThe mean inhibitory concentration (IC50) was 50 µg deltamethrin/cm2. Cytochrome P450 genes were differentially expressed; cyp52X1 and cyp617N1 transcripts were > 2‐fold induced, followed by cyp655C1 (1.8‐fold). Minor effects were observed on genes encoding for other P450s, epoxide hydrolase and glutathione S‐transferase (GST). Superoxide dismutase (SOD) genes showed induction levels ≤ 2, catalase (CAT) and glutathione peroxidase genes were also induced ∼ 2–3‐fold and < 2‐fold, respectively. The activities of enzymes participating in the antioxidant defense system and phase II detoxification were also evaluated; SOD, CAT and GST activity showed significant differences with deltamethrin concentration. Lipid peroxidation levels and free proline content were also altered.CONCLUSIONSBeauveria bassiana GHA can be used combined with deltamethrin without significant metabolic detrimental effects. This combination will help optimizing the benefits and increasing the efficacy of vector control tools. © 2013 Society of Chemical Industry
Inclined Tube‐Sheet Plastically Deformed Joints
Authors: Gonçalves Adriano , Alves Luis M. , Martins Paulo A. F. 
Published: May 2013

AbstractThe purpose of this paper is to provide readers with a broad understanding of inclined tube‐sheet joints produced by plastic deformation that will enable them to identify the major operating parameters, to determine the process window and to design tooling systems for producing strong, flexible, and environmentally friendly assemblies. The methodology draws upon the fundamentals of asymmetric local buckling of thin‐walled tubes subjected to axial compression and introduces two different process setups for assembling sheets to tubes at different inclination angles that can easily and effectively join dissimilar materials, at room temperature. The presentation is illustrated by selected test cases obtained from a comprehensive numerical and experimental research work. The overall content of the paper widens and enhances previous work published by the authors and is a step forward in joining sheets to tubes by plastic deformation. Potential applications of the proposed technology foster creative and innovative ideas in design for assembly for the benefit of those who work with sheets and tubes in daily practice.
An accurate forearm EMG signal classification method using two‐channel electrode
Authors: Sueaseenak Direk , Chanwimalueang Theerasak , Pintavirooj Chuchart , Sangworasil Manas 
Published: May 2013

AbstractAn accurate electromyography (EMG) classification algorithm to control a virtual hand prosthesis with 12 degrees of freedom using two surface EMG electrodes is presented in this paper. We propose the application of independent component analysis (ICA) for blind‐source separation of the EMG signals obtained from two electrodes. One of the problems affecting the EMG classification accuracy is the location dependence of the EMG signal due to the superposition of signals from multiple sources. ICA is used to separate the two signals obtained from two surface electrodes into two independent EMG signals prior to the feature extraction and classification processes. We demonstrate that the EMG classification accuracy can be improved using the ICA algorithm. We also propose a novel eigen‐based feature that is extracted from the short‐time Fourier transform (STFT) magnitude spectrum. Our new feature not only decreases feature dimensions but also performs better than other well‐known features. We also implement the EMG classification scheme on the virtual robot arm. The performance shows promising result as indicated by a decrease in the Davies–Bolden (DB) index after applying the ICA © 2013 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.
Women and adaptation
Authors: Alston Margaret 
Published: May 2013

This article addresses the uneven impacts of climate change on women. To date, there has been a significant emphasis on climate science and technological solutions to aid mitigation and adaptation strategies. This has led to a form of global managerialism that presupposes that all people can adapt with the right resources and knowledge. In this article, it is argued that the differential impacts of climate change on women demand that climate actions and strategies require gender sensitivity and that further research on climate change, adaptations, and actions includes a gendered analysis. WIREs Clim Change 2013, 4:351–358. doi: 10.1002/wcc.232This article is categorized under:

Vulnerability and Adaptation to Climate Change > Values‐Based Approach to Vulnerability and Adaptation
ALREX‐elements and introns: two identity elements that promote mRNA nuclear export
Authors: Palazzo Alexander F. , Mahadevan Kohila , Tarnawsky Stefan P. 
Published: May 2013

The mechanisms that dictate whether a particular mRNA is exported from the nucleus are still poorly defined. However, it has become increasingly clear that these mechanisms act to promote the expression of protein‐coding mRNAs over the high levels of spurious transcription that is endemic to most eukaryotic genomes. For example, mRNA processing events that are associated with protein‐coding transcripts, such as splicing, act as mRNA identity elements that promote nuclear export of these transcripts. Six years ago, we made the serendipitous discovery that regions within the open reading frame of an mRNA that encode short secretory or mitochondrial‐targeting peptides can also act as an mRNA identity element which promotes an alternative mRNA nuclear export (ALREX) pathway. These regions are enriched in protein coding genes and have particular features that can be used to identify this class of protein‐coding mRNA. In this article we review our current knowledge of how mRNA export evolved in response to particular events that occurred at the base of the eukaryotic tree. We will then focus on our current understanding of ALREX and compare its features to splicing‐dependent export, the main mRNA export pathway in metazoans. WIREs RNA 2013, 4:523–533. 10.1002/wrna.1176This article is categorized under:

RNA Evolution and Genomics > RNA and Ribonucleoprotein Evolution
RNA Export and Localization > Nuclear Export/Import
Optimizing the basis of B → K * ℓ + ℓ − observables in the full kinematic range
Authors: Descotes-Genon Sébastien , Hurth Tobias , Matias Joaquim , Virto Javier 
Published: May 2013

AbstractWe discuss the observables for theB→K*(→Kπ)ℓ+ℓ−decay, focusing on both CP-averaged and CP-violating observables at large and low hadronic recoil with special emphasis on their low sensitivity to form-factor uncertainties. We identify an optimal basis of observables that balances theoretical and experimental advantages, which will guide the New Physics searches in the short term. We discuss some advantages of the observables in the basis, and in particular their improved sensitivity to New Physics compared to other observables. We present predictions within the Standard Model for the observables of interest, integrated over the appropriate bins including lepton mass corrections. Finally, we present bounds on the S-wave contribution to the distribution coming from the$ B\to K_0^{*}{\ell^{+}}{\ell^{-}} $decay, which will help to establish the systematic error associated to this pollution.