bluuebunny/crossref_metadata_2025_split huggingface dataset:
Laser‐activated adhesive films for sutureless median nerve anastomosis
Authors: Barton Mathew , Morley John W. , Stoodley Marcus A. , Ng Kheng‐Seong , Piller Sabine C. , Duong Hong , Mawad Damia , Mahns David A. , Lauto Antonio 
Published: May 2013

AbstractA novel chitosan adhesive film that incorporates the dye ‘Rose Bengal’ (RB) was used in conjunction with a green laser to repair transected rat median nerves in vivo. Histology and electrophysiological recording assessed the impact of the laser‐adhesive technique on nerves. One week post‐operatively, the sham‐control group (laser‐adhesive technique applied on un‐transected nerves) conserved the average number and size of myelinated fibres in comparison to its contralateral side and electrophysiological recordings demonstrated no significant difference with un‐operated nerves. Twelve weeks after the laser‐adhesive anastomoses, nerves were in continuity with regenerated axons that crossed the anastomotic site. (© 2013 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Atypical Subtrochanteric and Diaphyseal Femoral Fractures: Second Report of a Task Force of the American Society for Bone and Mineral Research
Authors: Shane Elizabeth , Burr David , Abrahamsen Bo , Adler Robert A , Brown Thomas D , Cheung Angela M , Cosman Felicia , Curtis Jeffrey R , Dell Richard , Dempster David W , Ebeling Peter R , Einhorn Thomas A , Genant Harry K , Geusens Piet , Klaushofer Klaus , Lane Joseph M , McKiernan Fergus , McKinney Ross , Ng Alvin , Nieves Jeri , O'Keefe Regis , Papapoulos Socrates , Howe Tet Sen , van der Meulen Marjolein CH , Weinstein Robert S , Whyte Michael P 
Published: May 2013

ABSTRACT

Bisphosphonates (BPs) and denosumab reduce the risk of spine and nonspine fractures. Atypical femur fractures (AFFs) located in the subtrochanteric region and diaphysis of the femur have been reported in patients taking BPs and in patients on denosumab, but they also occur in patients with no exposure to these drugs. In this report, we review studies on the epidemiology, pathogenesis, and medical management of AFFs, published since 2010. This newer evidence suggests that AFFs are stress or insufficiency fractures. The original case definition was revised to highlight radiographic features that distinguish AFFs from ordinary osteoporotic femoral diaphyseal fractures and to provide guidance on the importance of their transverse orientation. The requirement that fractures be noncomminuted was relaxed to include minimal comminution. The periosteal stress reaction at the fracture site was changed from a minor to a major feature. The association with specific diseases and drug exposures was removed from the minor features, because it was considered that these associations should be sought rather than be included in the case definition. Studies with radiographic review consistently report significant associations between AFFs and BP use, although the strength of associations and magnitude of effect vary. Although the relative risk of patients with AFFs taking BPs is high, the absolute risk of AFFs in patients on BPs is low, ranging from 3.2 to 50 cases per 100,000 person-years. However, long-term use may be associated with higher risk (∼100 per 100,000 person-years). BPs localize in areas that are developing stress fractures; suppression of targeted intracortical remodeling at the site of an AFF could impair the processes by which stress fractures normally heal. When BPs are stopped, risk of an AFF may decline. Lower limb geometry and Asian ethnicity may contribute to the risk of AFFs. There is inconsistent evidence that teriparatide may advance healing of AFFs. © 2014 American Society for Bone and Mineral Research.
High‐pressure Single‐crystal X‐ray Diffraction Study of the Photomagnetic Switching Complex — [Y(DMF)4(H2O)3(μ‐CN)Fe(CN)5]·H2O
Authors: Wu Lai‐Chin , Overgaard Jacob , Madsen Solveig Røgild , Schmøkel Mette Stokkebro , Brummerstedt Iversen Bo 
Published: May 2013

AbstractHigh‐pressure single crystal X‐ray diffraction (HP‐SCXRD) measurements have been carried out on the photo‐magnetic compound, [Y(DMF)4(H2O)3(μ‐CN)Fe(CN)5]·H2O (DMF = dimethyl formamide) (1), in a diamond anvil cell (DAC) at several pressure points up to 7.6 GPa at room temperature. Significant changes are observed in the unit cell parameters accompanying a phase transition at elevated pressure, and the crystal furthermore exhibits a reversible color change. The phase transition involves a change of crystal lattice from monoclinic to triclinic which occurs as the crystal is pressurized above 4 GPa. The b axis, as well as the cell volume, doubles in the triclinic phase. For the data measured at 0.7 GPa full structure determination in the monoclinic cell is possible revealing significant structural changes, that are different from the changes previously observed after UV illumination.
Toward an Understanding of the Development of Ownership Feelings
Authors: Brown Graham , Pierce Jon L. , Crossley Craig 
Published: May 2013

SummaryPsychological ownership is increasingly recognized as a core feeling in the experience of work. Within jobs and the work context, there is a wide range of opportunities to experience psychological ownership. Yet empirical work on how feelings of ownership develop is lacking, and thus ways to develop psychological ownership in the workplace are not well understood. We explore the routes traveled to feelings of ownership by using job complexity as one example of work environment structure that affects the formation of psychological ownership. In two studies, we develop measures of the routes and confirm that perceived differences in one's work meaningfully predict psychological ownership. Collectively, the two studies provide insight into and offer suggestions for how ownership develops and ways in which managers might foster employee feelings of ownership toward their work. Copyright © 2013 John Wiley & Sons, Ltd.
A strong regional temperature signal in low‐elevation Huon pine
Authors: ALLEN K. J. , DREW D. M. , DOWNES G. M. , EVANS R. , COOK E. R. , BATTAGLIA M. , BAKER P. J. 
Published: May 2013

ABSTRACTWe have produced the first annually resolved, centennial‐length tree‐ring chronologies, based on tracheid radial diameter (TRD) and microfibril angle for south‐eastern Australia (SEA) from what would commonly be considered a dendroclimatically suboptimal site. The chronologies exhibit a strong regional temperature signal for the austral summer (nominally November–April) that extends across much of SEA. The strength and spatial extent of the temperature–TRD correlations surpass those between the iconic Tasmanian Mt Read ring‐width chronology and austral summer temperatures, and are more time‐stable. We demonstrate that the value of wood property chronologies for their ability to improve the both the quality and the quantity of highly climate‐sensitive series available for regional annual‐resolution climate reconstructions, in data‐sparse regions in Australasia and beyond, should be examined. In light of the ‘divergence debate’, the time‐stability of relationships with climate, relative to other tree‐ring proxies, also requires further investigation.
Hedonic and behavioral deficits associated with apathy in Parkinson's disease: Potential treatment implications
Authors: Jordan Lizabeth L. , Zahodne Laura B. , Okun Michael S. , Bowers Dawn 
Published: May 2013

ABSTRACTBackgroundMany individuals with Parkinson's disease (PD) experience apathy independent of depression.MethodsIn this study, we examined hedonic and behavioral deficits related to apathy in 50 patients with PD and 42 healthy older adults who completed standardized measures.ResultsRegression analyses revealed that apathy was associated with anticipatory, but not consummatory, anhedonia and reduced goal‐directed behavior, independent of PD diagnosis, age, education, and depressive symptoms.ConclusionsThese findings suggest that apathy is characterized by deficits in anticipatory pleasure and behavioral drive rather than consummatory pleasure or reward responsiveness. Therefore, PD patients with apathy would likely benefit from psychotherapeutic treatment that encourages structured, goal‐directed plans for pleasurable events and stimulation that provide adaptive hedonic effects. In addition, given the proposed shared mechanism of dopamine depletion within the ventral striatum in apathy and anticipatory anhedonia, future trials of dopamine‐eliciting activities (eg, exercise and other nonpharmacologic methods) appear to be warranted to improve these symptoms in patients with PD. © 2013 Movement Disorder Society
The role of small intestinal bacterial overgrowth in Parkinson's disease
Authors: Fasano Alfonso , Bove Francesco , Gabrielli Maurizio , Petracca Martina , Zocco Maria Assunta , Ragazzoni Enzo , Barbaro Federico , Piano Carla , Fortuna Serena , Tortora Annalisa , Di Giacopo Raffaella , Campanale Mariachiara , Gigante Giovanni , Lauritano Ernesto Cristiano , Navarra Pierluigi , Marconi Stefano , Gasbarrini Antonio , Bentivoglio Anna Rita 
Published: May 2013

ABSTRACTParkinson's disease is associated with gastrointestinal motility abnormalities favoring the occurrence of local infections. The aim of this study was to investigate whether small intestinal bacterial overgrowth contributes to the pathophysiology of motor fluctuations. Thirty‐three patients and 30 controls underwent glucose, lactulose, and urea breath tests to detect small intestinal bacterial overgrowth and Helicobacter pylori infection. Patients also underwent ultrasonography to evaluate gastric emptying. The clinical status and plasma concentration of levodopa were assessed after an acute drug challenge with a standard dose of levodopa, and motor complications were assessed by Unified Parkinson's Disease Rating Scale–IV and by 1‐week diaries of motor conditions. Patients with small intestinal bacterial overgrowth were treated with rifaximin and were clinically and instrumentally reevaluated 1 and 6 months later. The prevalence of small intestinal bacterial overgrowth was significantly higher in patients than in controls (54.5% vs. 20.0%; P = .01), whereas the prevalence of Helicobacter pylori infection was not (33.3% vs. 26.7%). Compared with patients without any infection, the prevalence of unpredictable fluctuations was significantly higher in patients with both infections (8.3% vs. 87.5%; P = .008). Gastric half‐emptying time was significantly longer in patients than in healthy controls but did not differ in patients based on their infective status. Compared with patients without isolated small intestinal bacterial overgrowth, patients with isolated small intestinal bacterial overgrowth had longer off time daily and more episodes of delayed‐on and no‐on. The eradication of small intestinal bacterial overgrowth resulted in improvement in motor fluctuations without affecting the pharmacokinetics of levodopa. The relapse rate of small intestinal bacterial overgrowth at 6 months was 43%. © 2013 Movement Disorder Society
A Wideband 100 GHz Low Noise Amplifier with Slow‐Wave CPW in 65 nm LP CMOS
Authors: Park Jung‐Dong , Niknejad Ali M. 
Published: May 2013

ABSTRACTA 100 GHz low noise amplifier (LNA) utilizing the slow‐wave coplanar waveguide (SW‐CPW) is presented in 65 nm low power (LP) CMOS process. A multistage wideband LNA is designed with minimal power gain degradation by carefully selecting degeneration inductance. Interstage matching networks are implemented with characterized SW‐CPW which has effective permittivity (ɛeff) equal to 13. The fabricated 100 GHz LNA achieves 8.8 dB of power gain and 6.9 dB of the noise figure including RF pads. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:1954–1957, 2013
Planar, Lightweight, Circularly Polarized Crossed Dipole Antenna for Handheld UHF RFID Reader
Authors: Ta, Son Xuat , Choo, Hosung , Park Ikmo 
Published: May 2013

ABSTRACTA planar, lightweight, crossed dipole antenna with circularly polarized (CP) radiation is introduced for application in a radiofrequency identification handheld reader at ultrahigh frequency bands. The dipoles cross through a 90° phase‐delay line of a vacant‐quarter printed ring that enables broadband characteristic in terms of impedance matching and 3‐dB axial ratio (AR) bandwidths. Four printed inductors are symmetrically inserted into the dipole arms whose ends are barbed to achieve a compact size. A sample antenna with a size of 60 × 60 × 0.508 mm and weight of 3.6 g is designed, fabricated, and measured. The proposed antenna yields an impedance bandwidth of 851–941 MHz for |S11| < −10 dB and a 3‐dB AR bandwidth of 902–921 MHz. At 910 MHz, the antenna radiates bidirectional CP waves with a gain of 1.4 dBic and an AR of 1.1 dB. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:1874–1878, 2013
CPW‐Fed Ultrawideband Flower‐Shaped Circular Fractal Antenna
Authors: Kim Dong‐Jun , Choi Jun‐Ho , Kim Young‐Sik 
Published: May 2013

ABSTRACTThis letter presents a design of a novel ultrawideband (UWB) circular fractal monopole antenna with a six‐petaled flower pattern. The coplanar‐waveguide‐fed technique and fractal concept have been used to achieve UWB characteristics. The size of the proposed antenna is 43 × 51 mm2 with a flower‐shaped circular patch radius of 15 mm. The proposed antenna exhibits UWB characteristics from 2.46 to 13.46 GHz, which corresponds to a fractional bandwidth of 138%. The measured radiation pattern of the proposed antenna is nearly omnidirectional. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:1792–1795, 2013
Antenna Emblems Reshaped as Icons and Esthetic Logos (Aerial)
Authors: Whittow William G. 
Published: May 2013

ABSTRACTThis article introduces the concept of designing microstrip patch antennas to take the form of esthetic arbitrary shapes or logos. Various intermediate shapes have been examined to analyze the behavior of asymmetric, curved, angular, and disconnected sections. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:1711–1714, 2013
Simple Low‐Cost Fabrication Method of A Buried Plastic Optical Waveguide for Circuits in Plastic Interconnects
Authors: Hamid, Hanan , Neeli MadhusudanRao , Fickenscher, Thomas , O'Keefe Steven G. , Thiel David V. 
Published: May 2013

ABSTRACTA simple and cost‐effective technology to integrate an optical waveguide into circuits in plastic board has been used to develop a 0.6 × 0.6 mm2 polymer waveguide in a plastic substrate. A simple direct coupling method was used to couple the light from a multimode optical fiber to the SU‐8 waveguide core. The interconnect achieved 2.45 and 2.54 dB/cm propagation loss at 1550 nm and 1310 nm wavelength, respectively, for a polyvinyl chloride polymer cladding and 1.66 and 1.51 dB/cm at 1550 and 1310 nm wavelength, respectively, for polymethyl methacrylate polymer cladding. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:1947–1950, 2013
Microstrip Phase Shifter Using Artificial Magneto‐Dielectric for Phased Array Antenna
Authors: Kwon Kyeol , Choi Jaehoon 
Published: May 2013

ABSTRACTA microstrip phase shifter using an artificial magneto‐dielectric (AMD) is presented. The split‐ring resonator (SRR) based AMD raises the effective permeability of the microstrip line to greater than one so that the maximum phase shift range of the line can be increased. Mechanical tuning of the proposed AMD phase shifter can be achieved by transversely moving one or several AMD unit cells. For a single unit cell, the insertion loss is smaller than 1.1 dB, whereas the return loss is larger than 15 dB at the frequency band of interest (2.30–2.38 GHz). A different number of AMD unit cells is deposited on each output port of a four‐port T‐junction power divider and the maximum relative phase shift is 95° at 2.38 GHz for a microstrip line with three AMD unit cells. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:1868–1871, 2013
An Adaptive Evolutionary Algorithm for UWB Microstrip Antennas Optimization Using a Machine Learning Technique
Authors: Silva Cláudio R. M. , Martins Sinara R. 
Published: May 2013

ABSTRACTThis article presents an application of a machine learning technique to enhance a multiobjective evolutionary algorithm to estimate fitness function behaviors from a set of experiments made in laboratory to analyze a microstrip antenna used in ultra wideband wireless devices. These function behaviors are related to three objectives: bandwidth, return loss, and central frequency deviation. Each objective is used inside an aggregate adaptive weighted fitness function that estimates the behavior in the algorithm. The machine learning technique enabled a dynamic estimation of an aggregated compound fitness function and made it possible to a prototype algorithm to learn and adapt with a set of experiments stored in a web system repository. The final results were then compared with the ones obtained with a similar antenna modeled in a simulator program and with the ones of a real prototype antenna built from the optimal values obtained after the optimization. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:1864–1868, 2013
A Low‐Profile Circularly Polarized Short Backfire Antenna with High Impedance Surface
Authors: Yi Huan , Qu Shi‐Wei 
Published: May 2013

ABSTRACTIn this article, high impedance surface (HIS) structures are used as a primary reflector of a short backfire antenna to reduce its profile. Crossed dipoles fed by a power divider with 90° phase shift are adopted as an exciter to realize circular polarization. It is demonstrated that the antenna profile can be reduced from 0.6 to 0.3 λ0 by using the HIS structures as a primary reflector. It also achieves a 3‐dB axial ratio bandwidth of more than 25% with a standing‐wave ratio below 2, and the peak broadside gain is around 13.47 dBi with a 3‐dB gain bandwidth of 22.5%. The simulated and experimental results are presented and discussed in the end of this article. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:1779–1784, 2013
A Small UWB CPW‐FED Monopole Antenna with Double Band‐Notch Property
Authors: Naser‐Moghadasi, Mohammad , Asadpor Loghman , Qotolo, Sajjad F. , Virdee Bal S. 
Published: May 2013

ABSTRACTA compact ultrawideband CPW‐fed monopole antenna is presented that includes dual band‐notch characteristics. The antenna consists of a modified V‐shaped patch with two resonant structures to create the required band‐notch function at the desired frequency bands to mitigate interference from WLAN and WiMAX systems. The band‐notch structures comprise of a rectangular‐shaped conductor backed plane and a rectangular‐shaped slot inserted within the antenna patch. The center frequency of the band‐notch can be varied prior to fabrication without affecting the antenna's overall characteristics. The antenna's performance was verified through measurements, which show that it operates across a large bandwidth between 2.9 and 12.7 GHz for VSWR <2 and provides band reject performance between 3.3–3.8 GHz and 5.2–5.8 GHz. The antenna's dimensions are 19.5 × 21 × 1 mm3. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:1840–1845, 2013
Flexible Fabrication of Long‐Period Fiber Grating Devices Based on Erasing Effect by Controlled Co2 Laser Pulse Exposure
Authors: Cheng Baokai , Lan Xinwei , Huang Jie , Fang Xia , Xiao Hai 
Published: May 2013

ABSTRACTAn easy way to flexibly fabricate special long‐period fiber grating (LPFG) devices by controlled CO2 laser pulses are presented in this paper. By controlling the pulse power and duration, consecutive exposures were made on an optical fiber to fabricate an LPFG. Existing LPFGs can also be erased or modified by applying CO2 laser exposures on specific grating sections. The erasing effect has been studied to fabricate special grating devices for various applications. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:1735–1738, 2013
Design and Optimization of A Broadband X‐Band Bidirectional Amplifier
Authors: Donelli, Massimo , Saavedra, Carlos , Rukanuzzaman Md 
Published: May 2013

ABSTRACTThis article presents the design of a simple and inexpensive X‐band bidirectional amplifier based on two microstrip quadrature hybrid rings and two low cost microwave monolithic integrated circuit monolithic amplifiers. Each subsystem of the amplifier was designed and optimized, by means of an optimization methodology to obtain the best performances. In particular, the design problem was recast as an optimization one by defining suitable cost functions that are then minimized with an evolutionary optimization technique, namely the particle swarm optimizer. An experimental prototype has been designed, developed, and measured. The obtained results demonstrate the capabilities of the proposed broadband bidirectional amplifier and envisage future and possible advances in the application of such devices for the development of advanced telecommunications systems. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:1730–1735, 2013
A Wideband Multilayer Quasi‐Yagi Antenna with a Simplified Microstrip‐to‐CPS Transition Based on LTCC Technology
Authors: Wang Jinhong , Sang Lei , Wang Zhigang , Xu Ruimin , Yan Bo 
Published: May 2013

ABSTRACTIn this article, a wideband multilayer quasi‐Yagi antenna using low temperature cofired ceramic technology is presented. The antenna is fed by a simplified microstrip‐to‐coplanar strip transition, which serves as balun and impedance transformer simultaneously. Multilayer directors are flared to direct the antenna propagation toward the end‐fire direction. Compared with the traditional planar quasi‐Yagi antenna, they can suppress the surface waves significantly and provide better director effect to improve the radiation performance. Furthermore, they excite multiple adjacent resonant modes to broaden the bandwidth. The measured results show that the proposed antenna achieves a wide bandwidth of 60% for S11 < −10 dB (26.8–49.8 GHz), better than 12 dB front‐to‐back ratio, smaller than 16 dB cross polarization and 4.5–6.9 dBi gain within the bandwidth. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:1959–1963, 2013
Empirical Formulas For Designing Gap‐Waveguide Hybrid Ring Coupler
Authors: Yang Jian , Raza Hasan 
Published: May 2013

ABSTRACTA new type of hybrid ring coupler (or rat‐race coupler)—the gap‐waveguide ring hybrid has been developed in this work. The advantages of the new gap‐waveguide ring hybrid are low manufacturing cost since the good electrical contact between metal plates is not required, and lower transmission loss compared to microstrip line since there is no dielectric material needed. Therefore, the gap‐waveguide technology opens up a possibility of waveguide integration circuit from millimeter wave up to terahertz. We present an empirical formula for designing the gap‐waveguide ring hybrid based on simulated data and has been verified by measurements of a prototype of the ring hybrid realized at 16 GHz. The prototype has an operating frequency band of 2 GHz around 16 GHz, with a reflection coefficient below −10 dB and a phase difference between two output ports of 182° ± 2°. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:1917–1920, 2013
Carrier‐Based Cmos Impulse Generator for Ultrawideband Vehicular Radar Application
Authors: Li, Ju‐Ching , Jung Sungyong , Kim Hyoung‐Soo , Gui Ping , Chung Hoon‐Ju 
Published: May 2013

ABSTRACTThis article presents a CMOS ultrawideband (UWB) impulse generator using a 0.13‐μm CMOS technology for the application of UWB 22–29‐GHz vehicular radar. The proposed impulse generator has a pulse‐modulated carrier‐based architecture. The proposed design is power efficient and spectrum controllable with a frequency tuning range of 800 MHz. The output impulse has a pulse width less than 0.55 ns providing a high range resolution for the UWB vehicular radar systems. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:1881–1887, 2013 10.1002/mop.27715