bluuebunny/crossref_metadata_2025_split huggingface dataset:
WATER, FOOD AND ENERGY SUPPLY CHAINS FOR A GREEN ECONOMY
Authors: Vlotman Willem F. , Ballard Clarke 
Published: March 2014

ABSTRACTA new paradigm for sustainable, integrated, water resources management is emerging from international conferences around the world. Its most succinct description is ‘the water–food–energy nexus for a green economy’. The water, food and energy nexus aims at the most efficient, best practice principles applied throughout the full food supply chain. This includes consideration of reducing wastage of the food for various reasons in the supply chain. This paper describes the global opportunities for better efficiency and resources conservation in the water, food, and energy supply chains with examples from Australia. Food wastage equates on average to 243 l day−1 of water per person in the food they throw away, which is 1.5 times the daily water use per person in the UK. The concepts of virtual water and water footprint can help in identifying opportunities to save water by targeting reduction of wastage of food that has the highest virtual water content. A green economy aims at achieving optimised supply chain objectives in a manner that espouses the sustainability principle, gives due attention to environmental concerns and helps with eradication of poverty and hunger. Copyright © 2014 John Wiley & Sons, Ltd.
Human polyethylene granuloma tissues inhibit bone healing in a novel xenograft animal model
Authors: Esposito Christina I. , Oliver Rema A. , Campbell Patricia A. , Yu Yan , Walter William L. , Walter William K. , Walsh William R. 
Published: March 2014

ABSTRACTDuring revision of a conventional polyethylene joint replacement, surgeons usually remove the source of osteolysis (polyethylene) but cannot always remove all of the polyethylene granuloma tissues. We developed a human/rat xenograft model to investigate the effects of polyethylene granuloma tissues on bone healing. Human osteoarthritic and periprosthetic tissues collected during primary and revision hip arthroplasty surgeries were transplanted into the distal femora of athymic nude rats. After 3 weeks in vivo, there was a significant difference in the bone volume fraction (Vf) between empty, primary, and revision defects (p = 0.02), with a lower Vf in defects with revision granuloma tissues compared to defects with primary osteoarthritic tissues. Polyethylene granuloma tissues in trabecular bone defects inhibited bone healing. Therefore, debridement around a metal‐on‐polyethylene hip replacement may shorten the time it takes to achieve secondary stability around a revision hip replacement. © 2014 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 32:735–743, 2014.
Country Image of Pakistan: A Preliminary Study
Authors: Fan Ying , Shahani Akram 
Published: March 2014

AbstractThis paper reports an empirical study of the country image of Pakistan. The purpose is to analyse key factors that influence perceptions. Four focus groups were conducted with both Pakistani nationals and people from other countries. Findings include the following: (i) there was little positive image of Pakistan as a country; (ii) most non‐Pakistani respondents lacked knowledge of the country; (iii) the self‐perception of Pakistanis was also largely negative; and (iv) media was the main source of information about the country. However, perceptions could be changed simply, as respondents gave very different responses after watching a slide show of Pakistan. Copyright © 2014 John Wiley & Sons, Ltd.
Porphyrin Network Polymers Prepared via a Click Reaction and Facilitated Oxygen Permeation Through Their Membranes
Authors: Chikushi Natsuru , Ohara Emiko , Hisama Ayako , Nishide Hiroyuki 
Published: March 2014

Network polymers of cobaltporphyrin derivatives are prepared by a facile click reaction via the Michael addition of acetoacetate‐substituted tetraphenyl cobaltporphyrin and tri‐ or tetra‐acrylates. The conversion is saturated for 1 h in the presence of a catalyst, which almost reaches the same gelation point of the formed network polymers. Deeply and homogeneously red‐colored membranes with a sub‐micrometer thickness are yielded on a porous supporting membrane. They are still tough even with a very high content of the rigid porphyrin residue. The oxygen permeability is high, at 10–100 Barrer, and the oxygen/nitrogen permselectivity (PO2/PN2) is significantly enhanced with the porphyrin content reaching 30, for the membranes with ca. 70 wt% porphyrin content.
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Compact quasi‐self‐complementary antenna for portable UWB applications
Authors: Zou Jinze , Liu Li , Cheung S. W. 
Published: March 2014

ABSTRACTA quasi‐self‐complementary (QSC) antenna with microstrip fed and a compact size of 19.7 × 19 mm2 is proposed for portable ultrawideband (UWB) applications. The antenna consists of a half‐elliptical conductor patch with two small half‐circular structures (HCSs) printed on one side of the substrate, and a slot with the complement of the conductor shape cut on the L‐shaped ground plane on the other side of the substrate. Computer simulation is used to design the QSC antenna. Results show that the HCSs can increase the lengths of the current paths on the antenna and hence, increase the operation bandwidth. As a result, for the same operation bandwidth, the size of the antenna can be reduced by 15% using the HCSs. Simulation is used to study the performance of the antenna in terms of S11, radiation pattern, realized gain, and efficiency. For verification of simulation results, the prototype of the antenna is measured using the antenna measurement system, Satimo Starlab system. The effects of the feeding cable used in measurement are also studied using computer simulation. The simulated cable effect on efficiency is evaluated and used to remove the cable effect on the measured result. Then, the simulated and measured efficiencies agree very well. Results show that the antenna has a bandwidth from 3.1 GHz to more than 12 GHz and efficiency of over 60%, making it suitable for portable UWB applications. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:1317–1323, 2014
A high selectivity and wide stopband UWB bandpass filter using asymmetric SIRs with split‐end
Authors: Weng Min‐Hang , Chen Wei‐Yu , Lan Siang‐Wen , Chang Shoou‐Jinn , Hon‐Kuan  , Su Yi‐Hsin 
Published: March 2014

ABSTRACTIn this article, a design of high selectivity and wide stopband ultrawideband (UWB) filter based on the asymmetric step‐impedance resonator (SIR) with split‐end is proposed. By properly selecting the impedance ratio, R, and the length ratio, α, and arranging the length of split‐ends of the asymmetric SIR, the good UWB passband using only one asymmetric SIR is realized from 2.9 to 5.1 GHz. Moreover, by tuning the feedlines as I/O ports with the split‐ends of the asymmetric SIR, three transmission zeros are well investigated and introduced for improving the selectivity of passband and providing the spurious suppression. Measured results of the fabricated filter have a good agreement with the full‐wave simulated results. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:1353–1356, 2014
Small sierpinski bowtie patch antenna with modified ground plane for improved bandwidth
Authors: Tseng Ching‐Fang , Wan Chia‐Chun 
Published: March 2014

ABSTRACTA small sierpinski bowtie patch antenna with improved bandwidth is described in this article. With variation in ground plane geometry, the measured 10 dB bandwidth of the proposed antenna is obtained 62.7% compared with a bandwidth of 0.4% in the antenna without modified ground plane. By adjusting the ground plane size of sierpinski bowtie patch antenna, the proposed antenna area is reduced to a half of the traditional one and it can have still high gain and directivity. The designed antenna is simulated by electromagnetic simulation software HFSS 10.0. The results of simulation and actual measurements are in good agreement. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:1385–1387, 2014
A triband bandpass filter with low loss and high band selectivity using the split‐end asymmetric stepped impedance resonators
Authors: Weng Min‐Hang , Chang Shoou‐Jinn , Chen Wei‐Yu , Lan Siang‐Wen , Hung Cheng‐Yuan , Su Yi‐Hsin , Hon‐Kuan  
Published: March 2014

ABSTRACTIn this article, a triband bandpass filter for the applications of global system for mobile communications at 1.8 GHz, WiMAX at 3.5 GHz, and WLAN at 5.2 GHz with low insertion loss and high selectivity is presented. First, the triband passband responses are designed by tuning the length ratio (u) and impedance ratio (R) of asymmetric stepped impedance resonators (SIRs). Second, the band performances are improved by carefully arranging the coupling structure of the SIR. In this design, the split‐end asymmetric SIRs are used to provide desired triband performances. Due to the four transmission zeros near the passband edge, the band selectivity of the proposed filter is much improved. The filter was fabricated and the measured results have a good agreement with the full‐wave simulated results. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:1427–1430, 2014
Broadband 270° sectoral microstrip antenna
Authors: Deshmukh Amit A. , Jain Ankita R. , Ray Kamla P. 
Published: March 2014

ABSTRACTA new 270° sectoral microstrip antenna (MSA) is proposed. It has additional resonance mode whose frequency lies below the fundamental mode of equivalent circular patch. Furthermore, slot cut 270° sectoral MSA is proposed. It gives bandwidth of more than 500 MHz (> 45%) with broadside radiation pattern and peak gain of 8.5 dBi. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:1447–1449, 2014
A frequency‐reconfigurable antenna for internal mobile handset applications
Authors: Sung Youngje 
Published: March 2014

ABSTRACTIn this article, a frequency‐reconfigurable planar antenna for mobile handset applications that covers the GSM, DCS, PCS, and UMTS bands is presented and studied. The antenna consists of a single continuous loop element with three connections to a printed circuit board through a feeding point and two shorting points. Additionally, a protruded ground plane is printed on the circuit board near the radiating element. Depending on the switching states of the PIN diode, the reconfigurable antenna operates in a planar inverted‐F antenna (PIFA) mode or loop mode. It is found from the measured results that the PIFA mode covers the GSM band, and the loop mode covers the DCS/PCS/UMTS bands. The occupied antenna volume of the proposed design is 27.8 × 10 × 1.6 mm3, which is quite compact as compared to internal mobile handset antennas that have been reported recently. Good radiation pattern characteristics with reasonable gains have been observed over the operating bandwidths. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:1366–1371, 2014
Design of compact antenna for 2.4/4.9/5.2/5.8‐GHz WLAN
Authors: Sun Xiaolei L. , Cheung S. W. , Yuk T. I. 
Published: March 2014

ABSTRACTThe design of a compact antenna for wireless devices in the 2.4/4.9/5.2/5.8‐GHz wireless local area network (WLAN) application is presented. The antenna consists of a U‐element with microstrip‐fed on one side of the substrate and an L‐element connected to ground on the other side. The U‐element generates a high‐frequency band at around 5.5 GHz for the 4.9/5.2/5.8‐GHz WLAN bands. The same U‐element, by forming a loop element with the L‐element and the ground, also generates a low‐frequency band at 2.44 GHz for the low‐WLAN band. The two radiating elements together have a compact size of 12.6 × 9 mm2 and the whole antenna has a very small size of only 25 × 25 mm2, including the ground plane. Computer simulation and measurement are used to study and optimize the antenna. For practical use of the design, the antenna is also designed on a mobile‐phone printed‐circuit board and studied using computer simulation and measurement. A simulation model of the feeding cable is included in simulation. Simulated and measured performances show good agreements. Finally, the effect of mobile phone housing is also studied using computer simulation. All results show that the antenna can cover all the 2.4/4.9/5.2/5.8‐GHz WLAN bands; hence the proposed antenna is a very promising candidate for practical WLAN devices. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:1360–1366, 2014
Altered resting state functional connectivity in young survivors of acute lymphoblastic leukemia
Authors: Kesler Shelli R. , Gugel Meike , Pritchard‐Berman Mika , Lee Clement , Kutner Emily , Hosseini S.M. Hadi , Dahl Gary , Lacayo Norman 
Published: March 2014

BackgroundChemotherapy treatment for pediatric acute lymphoblastic leukemia (ALL) has been associated with long‐term cognitive impairments in some patients. However, the neurobiologic mechanisms underlying these impairments, particularly in young survivors, are not well understood. This study aimed to examine intrinsic functional brain connectivity in pediatric ALL and its relationship with cognitive status.ProcedureWe obtained resting state functional magnetic resonance imaging (rsfMRI) and cognitive testing data from 15 ALL survivors age 8–15 years and 14 matched healthy children. The ALL group had a history of intrathecal chemotherapy treatment but were off‐therapy for at least 6 months at the time of enrollment. We used seed‐based analyses to compare intrinsic functional brain network connectivity between the groups. We also explored correlations between connectivity and cognitive performance, demographic, medical, and treatment variables.ResultsWe demonstrated significantly reduced connectivity between bilateral hippocampus, left inferior occipital, left lingual gyrus, bilateral calcarine sulcus, and right amygdala in the ALL group compared to controls. The ALL group also showed regions of functional hyperconnectivity including right lingual gyrus, precuneus, bilateral superior occipital lobe, and right inferior occipital lobe. Functional hypoconnectivity was associated with reduced cognitive function as well as younger age at diagnosis in the ALL group.ConclusionsThis is the first study to demonstrate that intrinsic functional brain connectivity is disrupted in pediatric ALL following chemotherapy treatment. These results help explain cognitive dysfunction even when objective test performance is seemingly normal. Children diagnosed at a younger age may show increased vulnerability to altered functional brain connectivity. Pediatr Blood Cancer 2014;61:1295–1299. © 2014 Wiley Periodicals, Inc.
RESPONSES OF INTERMITTENT STREAM FISH ASSEMBLAGES TO IRRIGATION DEVELOPMENT
Authors: Godinho F. N. , Pinheiro P. J. , Oliveira J. M. , Azedo R. 
Published: March 2014

ABSTRACTLarge‐scale irrigation projects are being undertaken in the Mediterranean region, and agricultural practices are being intensified, but their impacts on instream biota remain poorly documented. The present study assesses the effects of an irrigation scheme on fish community structure in Mediterranean streams. Fish assemblages were sampled in unregulated intermittent streams over 6 years concurrently with the development of a new irrigation project in southwestern Iberia, and the biotic variation was separately related to increases in human activity and environmental gradients. Overall, fish assemblages were influenced by reservoir proximity (likely functioning as a source of non‐native species), the proportion of irrigated lands, average water depth and wetted width (likely related with habitat permanency), and elevation. Results indicated that human actions linked to the irrigation project significantly shaped fish assemblage changes, after accounting for the effect of environmental variables. The proportion of irrigated lands in the catchment was related to some fish metrics (proportion of less tolerant specimens, proportion of invertivores and proportion of non‐native specimens, except G. holbrooki). Our results support the thesis that the development and exploitation of irrigation schemes impact fish assemblages and reinforce the need to ensure that the ongoing agricultural intensification is compatible with the ecological integrity of Mediterranean intermittent streams. Copyright © 2014 John Wiley & Sons, Ltd.
Autobiographical Memory and Imagining Future Personal Events: Event Specificity and Symptoms of Depression and Stress Following Exposure to an Analogue Trauma
Authors: Belcher Jessica , Kangas Maria 
Published: March 2014

AbstractThe aim of the present study was to investigate whether reduced autobiographical memory and future event specificity were associated with elevated depressive and stress symptoms immediately and 1 week following exposure to a trauma film. A non‐clinical sample comprising 101 participants completed all phases of the study, which included the following: baseline tests of autobiographical memory and future event specificity; a diary recording intrusions of the film over a 7‐day period; and self‐report questionnaires assessing depressive, posttraumatic stress and ruminative symptoms 7 days following the trauma film viewing. Overgeneral autobiographical memory was significantly related to deficits in the specificity with which participants imagined future events. Participants who were more specific when remembering past and imagining future events reported less intrusions related to the trauma film over the 7‐day period following the film; however, event specificity was not associated with depressive and stress symptoms 7 days later. These findings suggest that reduced past and future event specificity may play a role in the experience of intrusions following the experience of a stressful event. Copyright © 2014 John Wiley & Sons, Ltd.
Do Job Demands of Chinese Manufacturing Employees Predict Positive or Negative Outcomes? A Test of Competing Hypotheses
Authors: Cheung Janelle H. , Sinclair Robert R. , Shi Junqi , Wang Mo 
Published: March 2014

AbstractKarasek's job demands–control (JDC) model posits that job control can buffer against the harmful effects of demands experienced by employees. A large volume of JDC research has obtained support for the main effects of demands and control, but not the interactive effects. Recent research on the challenge–hindrance stressors framework, however, found that work stressors may not always be deleterious, suggesting alternative hypotheses about the effects of demands and control. The present study therefore examined competing hypotheses concerning the effects of job demands on occupational health outcomes. Using a sample of 316 employees in a Chinese manufacturing company, we found that, consistent with the challenge–hindrance framework, production demands were challenge stressors associated with favourable outcomes (i.e. job satisfaction and psychological well‐being). In addition, results showed that the interactive role of job control depended on the nature of outcome variables. Future recommendations and implications of findings are discussed. Copyright © 2014 John Wiley & Sons, Ltd.
Multiple‐resolution content sharing in mobile opportunistic networks
Authors: Lai Yongxuan , Chen Zhengkun , Wu Weicong , Ma Tianli 
Published: March 2014

AbstractMobile opportunistic network is a kind of delay‐tolerant network that consists of mobile wireless‐enabled nodes and adopts the form of opportunistic transmissions. When nodes are within the radio range, data and contents could be exchanged among the nodes to meet users' requests or subscriptions. Yet because of unpredictable node movements and varied users' interests, the sharing of contents is a challenging problem in mobile opportunistic networks. In this paper, we propose an efficient multi‐resolution content sharing algorithm in mobile opportunistic networks. The algorithm takes data granularity into account and attaches to each content segment a priority weight that combines factors of the node contact pattern and the match between the requests and contents when nodes are in contact. Then, on the basis of the priority weight, the most valued contents of proper resolution level are forwarded to the peer nodes for sharing. Our algorithm also calculates an importance weight for the contents stored in the cache, and content segments with the smallest importance would be transformed into lower resolution to free storage space and hence improve the overall usage of the storage. Extensive experimental results show that our algorithm performs well under extensive conditions. It increases the content delivery rate with little extra cost on message transmissions and delay of requests compared with other algorithms. To the best of our knowledge, this work is the first step on the research on multi‐resolution content sharing in mobile opportunistic networks. Copyright © 2014 John Wiley & Sons, Ltd.
Trinuclear Complexes of Zinc(II) and Cobalt(II) with a Tridentate Schiff Base Ligand Containing Phenolate and Pyridine Donor Groups
Authors: Diop Mayoro , Aly‐Gaye Papa , Bouyagui‐Tamboura Farba , Gaye Mohamed , Pérez‐Lourido Paulo , Valencia Laura , Castro Goretti 
Published: March 2014

AbstractAcetate trinuclear metal complexes of ZnII and CoII with the potentially tridentate Schiff base ligand, having mixed phenolate, imine, and pyridine donor groups, HL, were synthesized. The complexes were characterized by microanalysis, LSI mass spectrometry, IR, UV/Vis spectroscopy, and magnetic measurements. Crystal structures of [M3L2(OAc)4] (M = ZnII, CoII) complexes, were also determined. The X‐ray structures show the presence of trinuclear complexes with metal ions joined by phenolate and acetate bridging groups. The ligands coordinate to the metal ions through the imine nitrogen and their corresponding attached pyridyl and phenolate groups. The coordination environment for the metal ions is completed by bridging acetate anions to generate an octahedral coordination arrangement for the CoII complex and mixed distorted, bipyramidal trigonal and octahedral arrangements for the ZnII complex.
Influence of controlled inoculation of malolactic fermentation on the sensory properties of industrial cider
Authors: Sánchez Ainoa , de Revel Gilles , Antalick Guillaume , Herrero Mónica , García Luis A , Díaz Mario 
Published: March 2014

AbstractGiven the lack of research in the traditional cider making field when compared to the efforts devoted to winemaking, this work focused on the effects of controlled inoculation of the malolactic fermentation (MLF) on the sensory properties of cider. MLF develops spontaneously in cider making at industrial level. In this work, industrial cider samples were inoculated with selected indigenous Oenococcus oeni strains and the benefits on the aroma and flavour in cider production compared to non-inoculated ciders were evaluated. Randomly amplified polymorphic DNA PCR was used to monitor strain colonization ability, outnumbering the indigenous microbiota, after completion of the alcoholic fermentation at industrial scale (20,000 l). Aroma-active compounds of experimentally inoculated ciders were analysed by HPLC and GC–MS, and sensory profiles were determined by fractioning aroma extracts using reversed-phase HPLC. Principal component analysis allowed the identification of relationships and differences among ciders with or without inoculation, including several highly appreciated commercial ones obtained under spontaneous conditions. Under controlled inoculation conditions, not only could MLF be shortened by half but, interestingly, enhancement of aroma complexity and flavour resulted in ciders enriched with a higher fruity note. In addition, important aromatic groups analysed here had not been previously described, thus affording deeper knowledge on aroma characterization of apple cider.