bluuebunny/crossref_metadata_2025_split huggingface dataset:
Magnetic boosters for multiband operation
Authors: Andújar Aurora , Anguera Jaume 
Published: November 2012

AbstractEmergent wireless handheld platforms strongly require the integration of a wide variety of services and functionalities in their limited space. These constraints directly affect handset antenna design, which has to address the challenge of providing miniature and multiband antennas by facing the existing trade‐off between antenna performance and size. This article proposes the use of small magnetic boosters to excite the efficient radiating mode that the inherent ground plane of handset platforms features at mobile frequencies. Electrical models are used to provide a physical insight into the behavior of the radiating system and broadband techniques are applied for attaining impedance match. To validate the proposal, simulation results using the software IE3D based on MoM as well as measured results are provided. The outcomes demonstrate that the proposed magnetic boosters featured by considerable reduced dimensions of approximately 0.05λ are able of providing operation in the main communication standards GSM850/900 (824–960 MHz) and DCS/PCS/UMTS (1710–2170 MHz). Thus, the proposal attains a size reduction factor around five with respect to previous solutions based on resonant elements while preserves a suitable electromagnetic performance. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:65–75, 2013; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27241
High gain inverted U shaped miniaturized patch antenna for multiband wireless applications
Authors: Beno A. , Emmanuel D.S. 
Published: November 2012

AbstractA multiband inverted U‐shaped antenna with corrugated slits is proposed. The antenna is designed using small rectangular patch antennas connected with a microstrip feed to operate in the frequency bands from 5 to 10 GHz. The antenna achieves a peak gain of 15.29 dB at 9 GHz and above 8 dB in all the operating bands with good directional pattern of radiation. The antenna operates in the C‐Band, X‐Band covering the bands like WLAN in 5 GHz, satellite band of 5–7 GHz and microwave radar frequencies. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:27–31, 2013; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27243
Design of tri‐band microstrip BPF using SLR and quarter‐wavelength SIR
Authors: Deng Hong‐Wei , Zhao Yong‐Jiu , Fu Yong , Zhou Xiao‐Jun , Liu Yan‐Yun 
Published: November 2012

AbstractA tri‐band microstrip bandpass filter (BPF) with compact size and high selectivity is presented by using the stub‐loaded resonator (SLR) and quarter‐wavelength stepped‐impedance resonator (SIR). The quarter‐wavelength SIR is designed for the first and third passband and the SLR mainly controls second passband performance, so three passband frequencies can be flexibly tuned. Because of the intrinsic characteristics of the resonators and source‐load coupling, multiple transmission zeros can be created to improve the selectivity. Finally, a tri‐band BPF prototype located at 0.98 GHz (FRID application), 3.6 GHz (Wimax application), and 5.8 GHz (WLAN application) is designed. Measurement results agree well with the full‐wave EM simulated results. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:212–215, 2013; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27247
CPW‐FED compact bent monopole antenna for UWB applications
Authors: Sreenath S. , Ashkarali P. , Thomas Paulbert , Dinesh R. , Anandan C. K 
Published: November 2012

AbstractA compact CPW‐fed planar antenna suitable for ultra‐wideband (UWB) applications is presented.The proposed design is a modification of the simple monopole antenna where the monopole is folded and the asymmetric ground plane dimensions are optimized for UWB performance. The simple geometry and its compactness make the antenna good candidate for portable applications involving integration with microwave monolithic integrated circuit (MMIC) devices. The antenna fabricated on FR4 substrate shows almost identical radiation characteristics in the entire band with an average gain of 2.5 dBi. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:56–58, 2013; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27252
A reconfigurable wide slot antenna integrated with sirs for UWB/multiband communication applications
Authors: Li Yingsong , Li Wenxing , Ye Qiubo 
Published: November 2012

AbstractA reconfigurable wide slot antenna integrated with stepped impedance resonators (SIRs) and ideal switches for ultra‐wideband (UWB) and multiband communication applications is proposed. The proposed reconfigurable antenna can be used as a UWB antenna, a dual notch‐band UWB antenna, and multiband antennas. The dual notch‐band functions are obtained by using two stepped impedance stub‐loaded SIRs. The reconfigurable characteristics are achieved by using two ideal switches on SIRs. The measurement and simulation results show that the proposed reconfigurable antenna has good switchable characteristics and dual notch‐band functions. The designed reconfigurable antenna is suitable for future multimode wireless communications systems. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:52–55, 2013; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27253
Crosstalk penalties analysis in mixed line transmission rates (10G‐OOK/40G‐DQPSK/112G‐DP‐QPSK/224G‐DP‐16‐QAM) optical flexible grid networks
Authors: Oliveira J. C. R. F. , Silva R. , Silva E.P. , Carvalho L. H. H. , Silva M. L. , Neto J. M. C. , Paradisi A. 
Published: November 2012

AbstractCrosstalk penalties in flexible grid networks with mixed rates lead to system degradation due to add/drop in‐band residual power or nonuniform channel grid allocation. These penalties are quantified for 112G‐DP‐QPSK test channel with 10G‐OOK, 40G‐DQPSK, 112G‐DP‐QPSK, and 224G‐DP‐16‐QAM simultaneous optical transmission. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:119–122, 2013; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27269
Investigation of bending and temperature effects in optical fibers
Authors: Golnabi H. , Sharifian M. 
Published: November 2012

AbstractFiber bending and temperature loss mechanisms in plastic optical fibers are reported.A simple arrangement is used to monitor the fiber bending and temperature by output power variation. Powers in the fibers in bend‐free situation at room temperature and under rolling deforming force at different water bath temperatures (20–60°C) are measured and compared. Reported arrangements can be used as a temperature sensor. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:82–86, 2013; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27271
A novel design of compact wideband hexagonal antenna
Authors: Mondal Santanu , Sarkar Partha P. 
Published: November 2012

AbstractA novel design of planar hexagonal antenna (PHA) fed by a coplanar waveguide has been presented for wideband applications.The semicircular base to upper and lower side of hexagonal radiator increases the impedance bandwidth. A shorting strip is introduced as a top load to the antenna to achieve compactness. The proposed shorted PHA (SPHA) yields bidirectional radiation pattern in both elevation and azimuth plane. The −10 dB return loss of SPHA exhibits from 1.24 to 20 GHz. The simulated results for various characteristics of the antenna have been shown using finite integration technique based commercial software CST MICROWAVE STUDIO. The simulated and measured return loss characteristics of SPHA are in good agreement. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:1–4, 2013; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27276
The detection of mosaicism by prenatal BoBs™
Authors: Cheng Yvonne K.Y. , Wong Cherry , Wong Hoi Kin , Leung Kwok On , Kwok Yvonne K. , Suen Andy , Wang Chi Chui , Leung Tak Yeung , Choy Kwong Wai 
Published: November 2012

ABSTRACTObjectiveThe objective of the study was to evaluate the ability of a new prenatal diagnostic platform – prenatal BACs‐on‐Beads™ (BoBs™) in detecting mosaicism by comparison to quantitative fluorescence‐polymerase chain reaction (QF‐PCR).MethodsA validation study of prenatal BoBs™ was firstly performed using 18 artificially constructing mosaic samples involving various aneuploidies and microdeletion conditions. Additionally, we compared the accuracy between prenatal BoBs™ and QF‐PCR for 18 archived clinical mosaic cases and nine chromosomally abnormal cell lines with reference to conventional karyotype results.ResultsIn the validation study, BoBs™ allowed the detection of mosaicism at a level of 20–40%. Among the clinical mosaic cases, 14/18 cases were within the detection of BoBs™, 8/14 (57.1%) could be identified by BoBs™ and 6/9 (66.7%) by QF‐PCR, but 6/14 (42.9%) were missed by both tests. Three cases (16.7%) were detected by prenatal BoBs™ but missed by QF‐PCR, whereas QF‐PCR detected one case that was missed by BoBs™. The overall sensitivity of BoBs™ in detecting mosaicism is 44.4% (8/18), which is slightly higher than that of QF‐PCR (33.3%; 6/18).ConclusionPrenatal BoBs™ has a sensitivity of 57.1% in the detection clinical mosaic cases. According to the validation test, mosaicism of 20% or greater is detectable by the BoBs™ assay. © 2012 John Wiley & Sons, Ltd.
The unique optical behaviour of bio‐related materials with organic chromophores
Authors: Ciardelli Francesco , Bertoldo Monica , Bronco Simona , Pucci Andrea , Ruggeri Giacomo , Signori Francesca 
Published: November 2012

AbstractMolecularly designed materials based on macromolecules and organic dyes offer unique opportunities in connection with the possibility of preparing optically responsive ‘smart’ materials. Indeed macromolecules are able to transmit and amplify small signals reaching sites at interacting distance through the involvement of the whole chain. The corresponding materials can then acquire stimuli‐responsive properties in relation to specific features connected to primary structure and conformation. As a first approach to benefit from the above features for preparing eco‐compatible smart materials, bio‐related polypeptides, polysaccharides and polyesters can be used as the macromolecular partner in combination with a selected dye following different interaction methodologies. Two distinct routes were used to prepare optically responsive products from the above bio‐related polymers, respectively based either on the covalent bonding to the original macromolecules of photochromic molecular species, such as azobenzene and spiropyran, or on the morphology‐modulated dispersion of highly conjugated dyes in the polymer bulk. Examples related to the two different routes have been investigated in our laboratory and are presented and discussed also with reference to selected recent cases from the literature. Copyright © 2012 Society of Chemical Industry
Evaluation of genetic counseling among cystic fibrosis carriers, Michigan Newborn Screening
Authors: Kleyn Mary J. , Langbo Carrie , Abdulhamid Ibrahim , Adamski Craig R. , Allan Catherine , Carmany Erin P. , Gregoire‐Bottex M. Myrtha , Homnick Douglas , Schuen John , Nasr Samya Z. 
Published: November 2012

AbstractObjectiveA quality improvement (QI) strategy to improve the rate of genetic counseling (GC) services was initiated in cystic fibrosis (CF) care Center E in 2010. This statewide study was conducted to determine: (1) GC rates before and after implementation of the QI strategy at Center E; (2) characteristics associated with not receiving GC; and (3) topic areas addressed during GC.MethodsThe retrospective study included 1,097 CF carriers born from 2008 to 2011 identified through Michigan's Newborn Screening Program. Rate of GC services was determined for Center E and the other four CF centers before and after the QI change. Bivariate and multivariable logistic regression was used to determine associations between select characteristics and not receiving GC. Topic areas discussed during GC sessions were assessed using frequency tables.ResultsRate of GC services in Center E increased from 23% in 2008–2010 to 91% in 2011, while at the other centers approximately 92% received GC services across those years. In 2008–2010, being seen at Center E and black race were significantly associated with increased likelihood of not receiving GC services in adjusted analyses. In 2011, neither characteristic was associated with receipt of GC. Of 16 target topic areas, all were discussed in 85% of GC sessions.ConclusionsImplementing a QI strategy of providing sweat test results at the GC appointment within Center E resulted in more CF carriers receiving comprehensive GC services. Center‐specific procedure differences should be assessed to increase rate of GC services following a positive CF newborn screen. Pediatr Pulmonol. 2013; 48:123–129. © 2012 Wiley Periodicals, Inc.
Performance analysis for buffer‐aided communication over block Rayleigh fading channels: queue length distribution, overflow probability, and ε‐overflow rate
Authors: Dong Yunquan , Fan Pingyi , Letaief Khaled Ben , Murch Ross D. 
Published: November 2012

ABSTRACTIn this paper, we consider information transmission over a block Rayleigh fading channel, where a finite size buffer is employed to match the source traffic with the channel service capability. Given the buffer size, the transmission capability of a block fading Rayleigh channel is characterized from two aspects: (i) the buffer behavior when the input traffic rate is constant; and (ii) the traffic rate that can be supported by the channel for a given overflow probability constraint. For the first problem, the stationary distribution of the queue length in the buffer is derived by discretizing the queue length using a uniform quantization strategy. It is also shown that the overflow probability of the finite size buffer decreases exponentially with buffer size. An explicit upper bound on the overflow probability is also given. For the second one, a new concept of ε‐overflow rate is proposed to measure the transmission capability of a block fading channel under overflow probability constraints. It will be shown that the ε‐overflow rate is larger than the ε‐outage capacity under the same outage constraint and will meet the great gap between outage capacity and ergodic capacity as the overflow probability constraint varies. Copyright © 2012 John Wiley & Sons, Ltd.
Cooperative ad hoc networks for energy and delay efficient content distribution with fast channel variations
Authors: Atat Rachad , Yaacoub Elias , Alouini Mohamed‐Slim , Abu‐Dayya Adnan 
Published: November 2012

ABSTRACTCooperative ad hoc networks for the efficient distribution of content of common interest are studied in the case of fast channel variations. Mobiles are grouped into cooperative clusters for the purpose of receiving the content with optimized energy efficiency. Data are sent to mobile terminals on a long range (LR) link, and then, the terminals exchange the content by using an appropriate short range wireless technology. When channel state information is available for the LR links, unicasting is used on the LR. When accurate channel state information is not available, threshold‐based multicasting is implemented on the LR. Energy minimization is formulated as an optimization problem for each scenario, and the optimal solutions are determined in closed form in scenarios with fast channel variations. Results show significant energy savings in the proposed schemes compared with the noncooperative case and other previous related work. Furthermore, the energy minimizing solutions are shown to lead to reduced delay in the content distribution process. Practical implementation aspects of the proposed methods are also discussed. Copyright © 2012 John Wiley & Sons, Ltd.
Psychosocial Benefits and Implications of Exercise
Authors: Gaz Daniel V. , Smith Aynsley M. 
Published: November 2012

AbstractThis review is based on a case report that concerns a young female athlete who experienced some of the negative aspects of exercise. Overtraining, a negative byproduct of excessive exercise, can turn the positive psychosocial and physiologic benefits of regular physical activity into an activity detrimental to one's health. With the proper psychological skills and appropriate exercise regimen, these negatives can be turned into positives. Once learned, the psychosocial benefits of exercise, as well as the positive implications, will become more prevalent, similar to the way in which proper physical training helps one become more fit over time.
The centralizer of a subgroup in a group algebra
Authors: Danz Susanne , Ellers Harald , Murray John 
Published: November 2012

AbstractLet F be an algebraically closed field, G be a finite group and H be a subgroup of G. We answer several questions about the centralizer algebra FGH. Among these, we provide examples to show that•the centre Z(FGH) can be larger than the F-algebra generated by Z(FG) and Z(FH),•FGH can have primitive central idempotents that are not of the form ef, where e and f are primitive central idempotents of FG and FH respectively,•it is not always true that the simple FGH-modules are the same as the non-zero FGH-modules HomFH(S, T ↓ H), where S and T are simple FH and FG-modules, respectively.
REPRODUCTIVE PREFERENCES AND CONTRACEPTIVE USE: A COMPARISON OF MONOGAMOUS AND POLYGAMOUS COUPLES IN NORTHERN MALAWI
Authors: BASCHIERI A. , CLELAND J. , FLOYD S. , DUBE A. , MSONA A. , MOLESWORTH A. , GLYNN J. R. , FRENCH N. 
Published: November 2012

SummaryThere is now widespread agreement on the importance of men's role in reproductive decision-making. Several studies have argued that fertility preferences and their translation into behaviour differ between polygamous and monogamous unions. Studies investigating the dominance of men's preferences over women's preferences, in cases of couple disagreement, found mixed evidence of the effect of polygamy. However, an often cited limitation of these studies has been the inability to link husband's intention with each of his wives in a polygamous union. By adding fertility-intention questions to an on-going Demographic Surveillance Site in Karonga District in northern Malawi the fertility preferences and contraceptive use of husbands and wives were investigated. An analysis of the relationship between the level of agreement and disagreement between husbands' and wives' fertility preferences was then performed to gain insight into the reproductive decision-making process of polygamous couples.
Understanding the Energy Diplomacies of East Asian States
Authors: DENT CHRISTOPHER M. 
Published: November 2012

AbstractEnergy security is one of the major global challenges of the twenty-first century. Intensifying competition for ever scarcer forms of conventional energy resources is causing significant tensions in the international system. East Asia will have a more profound impact on global energy security than any other region as its burgeoning demand for energy fuels, spurred principally by China, is expected to continue growing at over twice the world average in the next few decades. This paper examines the reasons why we may expect the energy diplomacies of East Asian states to become an increasingly salient feature of East Asian states’ foreign policy and international relations in the foreseeable future, and thereby significantly shape the nature of the region's international political economy. It presents a framework of energy diplomacy analysis in order to better understand how East Asian states are formulating their energy diplomacy strategies and actions. The four prime elements of this framework comprise: empirical perspectives and generic task-oriented terms; agential influences on the formation and organization of energy diplomacy practice; the energy–development nexus; and transaction mechanisms of energy diplomacy. The main conclusions are first, mercantilist approaches to energy diplomacy will persist but continue to gradually give way to market institutionalism; second, energy diplomacy will become increasingly linked to other forms of diplomacy, such as trade, environment and development assistance; third, we may expect East Asian states to afford greater priority to multilateral energy co-operation both regionally and in a wider international or global sense as energy security interdependencies deepen; and fourth, East Asia's growing reliance on sourcing energy fuels from outside the region will make it more dependent on stable international energy markets—these markets are becoming increasingly internationalized and globalized, which will broaden the future options of East Asian states developing new international energy partnerships.
Prejudice is about politics: A collective action perspective
Authors: Drury John 
Published: November 2012

AbstractIn line with Dixon et al.'s argument, I contend that prejudice should be understood in broadly political rather than in narrowly psychological terms. First, whatcountsas prejudice is a political judgement. Second, studies of collective action demonstrate that it is in “political” struggles, where subordinate groups together oppose dominant groups, that prejudice can be overcome.
Statistical learning and prejudice
Authors: Madison Guy , Ullén Fredrik 
Published: November 2012

AbstractHuman behavior is guided by evolutionarily shaped brain mechanisms that make statistical predictions based on limited information. Such mechanisms are important for facilitating interpersonal relationships, avoiding dangers, and seizing opportunities in social interaction. We thus suggest that it is essential for analyses of prejudice and prejudice reduction to take the predictive accuracy and adaptivity of the studied prejudices into account.
Prejudicial behavior: More closely linked to homophilic peer preferences than to trait bigotry
Authors: Vigil Jacob M. , Venner Kamilla 
Published: November 2012

AbstractWe disagree with Dixon et al. by maintaining that prejudice is primarily rooted in aversive reactions toward out-group members. However, these reactions are not indicative of negative attributes, such as trait bigotry, but rather normative homophily for peers with similar perceived attributes. Cognitive biases such as stereotype threat perpetuate perceptions of inequipotential and subsequent discrimination, irrespective of individuals' personality characteristics.
Beam ion losses due to energetic particle geodesic acoustic modes
Authors: Fisher R.K. , Pace D.C. , Kramer G.J. , Van Zeeland M.A. , Nazikian R. , Heidbrink W.W. , García-Muñoz M. 
Published: November 2012

Abstract
We report the first experimental observations of fast-ion loss in a tokamak due to energetic particle driven geodesic acoustic modes (EGAMs). A fast-ion loss detector installed on the DIII-D tokamak observes bursts of beam ion losses coherent with the EGAM frequency. The EGAM activity results in a significant loss of beam ions, comparable to the first orbit losses. The pitch angles and energies of the measured fast-ion losses agree with predictions from a full orbit simulation code SPIRAL, which includes scattering and slowing-down.