bluuebunny/crossref_metadata_2025_split huggingface dataset:
Planar ultra‐wideband antenna with a frequency notch characteristic
Authors: Huang Chih‐Yu , Hsia Wei‐Chun 
Published: December 2006

AbstractA novel and simple design of a printed circular patch antenna for ultra‐wideband application with a band‐notched characteristic is presented. By cutting a pie‐shaped slot on the circular radiating patch, a frequency band notch will be created. The cutting pie depth contributes to the notch center frequency and notch bandwidth while the pie flare angle contributes to the notch bandwidth. It is easy to design a specific notch band range by adjusting the cutting pie size. The position of cutting pie is also investigated. Details of the proposed designs and experimental results of the constructed prototypes are presented. © 2006 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 316–320, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22113
Double annular‐ring dielectric resonator antenna for ultra‐wideband application
Authors: Ruan Yu‐Feng , Guo Yong‐Xin , Shi Xiang‐Quan 
Published: December 2006

AbstractA new dielectric resonator antenna (DRA) is proposed in this article for ultra‐wideband (UWB) application. A larger annular‐ring DRA is placed concentrically outside a smaller one to form a double annular‐ring DRA. The antenna is operating at the end‐fire mode. The effects of antenna parameters, such as the radiuses and heights of the dielectric resonators as well as the probe length are investigated. The proposed double annular‐ring DRA can offer an impedance bandwidth up to 3–11.2 GHz for a return loss less than −10 dB. The radiation patterns are stable in the passband. © 2006 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 362–366, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22140
Miniaturized tri‐band equilateral triangular microstrip antennas for wireless communication applications
Authors: Elsadek Hala 
Published: December 2006

AbstractNovel designs for compact multi‐band single feed triangular microstrip antenna are presented. Shorting wall is introduced for 50% size reduction while inserted slits are added for tri‐band operation. Triangular shorting capacitive plate is inserted to reach 75% size reduction from conventional λ0/2 triangular microstrip antenna. Gain greater than 8 dBi is achieved. © 2006 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 487–491, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22143
An automated quantitation of short echo time MRS spectra in an open source software environment: AQSES
Authors: Poullet Jean‐Baptiste , Sima Diana M. , Simonetti Arjan W. , De Neuter Bart , Vanhamme Leentje , Lemmerling Philippe , Van Huffel Sabine 
Published: December 2006

AbstractThis paper describes a new quantitation method called AQSES for short echo time magnetic resonance spectra. This method is embedded in a software package available online from www.esat.kuleuven.be/sista/members/biomed/new/ with a graphical user interface, under an open source license, which means that the source code is freely available and easy to adapt to specific needs of the user. The quantitation problem is mathematically formulated as a separable nonlinear least‐squares fitting problem, which is numerically solved using a modified variable‐projection procedure. A macromolecular baseline is incorporated into the fit via nonparametric modelling, efficiently implemented using penalized splines. Unwanted components such as residual water are removed with a maximum‐phase FIR filter. Constraints on the phases, dampings and frequencies of the metabolites can be imposed. AQSES has been tested on simulated MR spectra with several types of disturbance and on short echo time in vivo proton MR spectra. Results show that AQSES is robust, easy to use and very flexible. Copyright © 2006 John Wiley & Sons, Ltd.
Differential response to H. pylori eradication therapy of co‐existing diffuse large B‐cell lymphoma and MALT lymphoma of stomach—significance of tumour cell clonality and BCL10 expression
Authors: Kuo S‐H , Chen L‐T , Wu M‐S , Kuo K‐T , Yeh K‐H , Doong S‐L , Yeh P‐Y , Hsu H‐C , Tzeng Y‐S , Lin C‐W , Lin J‐T , Cheng A‐L 
Published: December 2006

AbstractWe recently reported that low‐grade mucosa‐associated lymphoid tissue lymphoma (MALToma) and diffuse large B‐cell lymphoma (DLBCL) with MALToma (DLBCL[MALT]) of stomach are equally responsive to H. pylori eradication therapy (HPET) and that H. pylori‐independent status is closely associated with nuclear translocation of BCL10. However, co‐existing MALToma and DLBCL components of gastric DLBCL(MALT) may respond differentially to HPET and the underlying mechanism remains unclear. Tumour tissue samples from 18 patients with microdissectable co‐existing MALToma and DLBCL cells were studied. The clonality of lymphoma cells was examined by polymerase chain reaction‐based amplification of the CDR3 region of the IgH gene and confirmed by DNA sequence analysis. BCL10 expression was determined by immunohistochemistry. Differential response of co‐existing MALToma and DLBCL to HPET was defined as complete eradication of one component while the other component remained. Five (27.8%) of the 18 patients showed different IgH gene rearrangements in the two components and three (60%) of these five patients had differential response of MALToma and DLBCL to HPET. By contrast, 13 patients showed identical IgH gene rearrangements and only one (8%) of them had differential response of the two components to HPET (p = 0.044). Further, all four patients with differential response of MALToma and DLBCL to HPET showed nuclear expression of BCL10 in the H. pylori‐independent component and cytoplasmic expression of BCL10 in the H. pylori‐dependent component while the expression patterns of BCL10 were identical in both of these components in the 14 patients who had similar tumour response to HPET. We conclude that different clonality is a common reason for the differential response of co‐existing MALToma and DLBCL of gastric DLBCL(MALT) to HPET and that immunohistochemical examination of BCL10 expression may help to identify the co‐existence of these components. Copyright © 2006 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
H2‐Blocker und Antazida bei gastrointestinalen Erkrankungen. Erfolgreiche Therapie von Ulcusleiden?
Authors: Stein Jürgen , Rösch Wolfgang 
Published: December 2006

AbstractKaum ein gastroenterologisches Krankheitsbild hat in den vergangenen 30 Jahren einen derartigen Wandel hinsichtlich der medikamentösen Therapie erfahren wie das Ulcusleiden.
Latices of poly(fluoroalkyl mathacrylate)‐b‐poly(butyl methacrylate) copolymers prepared via reversible addition–fragmentation chain transfer polymerization
Authors: Zhou Xiaodong , Ni Peihong , Yu Zhangqing , Zhang Feng 
Published: December 2006

AbstractPoly(fluoroalkyl mathacrylate)‐block‐poly(butyl methacrylate) diblock copolymer latices were synthesized by a two‐step process. In the first step, a homopolymer end‐capped with a dithiobenzoyl group [poly(fluoroalkyl mathacrylate) (PFAMA) or poly(butyl methacrylate) (PBMA)] was prepared in bulk via reversible addition–fragmentation chain transfer (RAFT) polymerization with 2‐cyanoprop‐2‐yl dithiobenzoate as a RAFT agent. In the second step, the homopolymer chain‐transfer agent (macro‐CTA) was dissolved in the second monomer, mixed with a water phase containing a surfactant, and then ultrasonicated to form a miniemulsion. Subsequently, the RAFT‐mediated miniemulsion polymerization of the second monomer (butyl methacrylate or fluoroalkyl mathacrylate) was carried out in the presence of the first block macro‐CTA. The influence of the polymerization sequence of the two kinds of monomers on the colloidal stability and molecular weight distribution was investigated. Gel permeation chromatography analyses and particle size results indicated that using the PFAMA macro‐CTA as the first block was better than using the PBMA RAFT agent with respect to the colloidal stability and the narrow molecular weight distribution of the F‐copolymer latices. The F‐copolymers were characterized with 1H NMR, 19F NMR, and Fourier transform infrared spectroscopy. Comparing the contact angle of a water droplet on a thin film formed by the fluorinated copolymer with that of PBMA, we found that for the diblock copolymers containing a fluorinated block, the surface energy decreased greatly, and the hydrophobicity increased. © 2006 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 45: 471–484, 2007
Resilience and well‐being in palliative care staff: a qualitative study of hospice nurses' experience of work
Authors: Ablett Janice R. , Jones R. S. P. 
Published: December 2006

AbstractAlthough working with cancer patients is considered stressful, palliative care staff experience similar levels of psychological distress and lower levels of burnout than staff working in other specialties. There are few empirical studies in palliative care to explain this. Since working in a stressful job does not inevitably lead to psychological distress, the antecedent factors that promote resilience and maintain a sense of well‐being are worthy of study.This qualitative study used interpretative phenomenological analysis (IPA) to describe hospice nurses' experiences of work. During the analysis, themes emerged relating to the underlying interpersonal factors that influenced the nurses' decisions to begin and continue working in palliative care, and their attitudes towards life and work.The emergent themes were compared with the theoretical personality constructs of hardiness and sense of coherence, and this comparison highlighted many similarities. The nurses showed high levels of commitment, and imputed a sense of meaning and purpose to their work. An area of divergence was their response to change, and this is discussed in relation to hardiness and sense of coherence. The implications for staff well‐being, and for staff training and support, which, in turn, may impact on the quality of patient care, are discussed. Copyright © 2006 John Wiley & Sons, Ltd.
Familial social support and depression in breast cancer: an exploratory study on a Pakistani sample
Authors: Nausheen Bina , Kamal Anila 
Published: December 2006

AbstractThis exploratory study investigated the relationship between familial social support and depression in a Pakistani sample of 80 female breast cancer patients, and whether the groups of demographic and medical variables differ on the levels of familial social support and depression. Familial social support and depression were measured by indigenous scales administered in Urdu language and found to be significantly inversely correlated. The groups based on age, number of children, financial sources of treatment, and disease stage differed significantly on familial social support and depression. No significant group differences were found on familial social support and depression between the groups of patients living in joint and nuclear families, and those who had and had not undergone mastectomy. Results are discussed in the respective social and cultural context. Copyright © 2006 John Wiley & Sons, Ltd.
Design of ship loading chutes to reduce dust emissions
Authors: Wheeler Craig , Krull Tobias , Roberts Alan , Wiche Stephen 
Published: December 2006

AbstractThis article presents an industrial case study to reduce dust emissions from a grain handling ship loader. The primary objective of the study was to reduce dust emissions to within acceptable environmental levels during ship loading. Several constraints were imposed on the solution as the result of time and budgetary restrictions, and the inability to add a dust suppression agent to the grain for quality reasons. Although this article specifically deals with grain, application of this technology is also equally suitable for reducing dust emissions while handling other particulate commodities.A number of alternative loading chute configurations and delivery spoon (a discharge device) profiles were examined in a pilot‐scale test facility. This article discusses a number of alternative solutions that were investigated during the course of the study and the critical parameters of the final design. Tests showed that it was not beneficial to decelerate the product stream to keep the relative velocity of the air stream over the grain below the minimum pickup velocity. Instead, it was found that concentrating the product stream and keeping the product velocity high proved to be more beneficial in reducing dust emissions. A reduction of 50% in dust emission was achieved through the use of specifically designed constant‐radius and parabolic‐profile loading spoons. The product stream exiting the curved spoons was found to be concentrated and streamlined, resulting in the dust being contained within the product stream. © 2006 American Institute of Chemical Engineers Process Saf Prog 26: 229–234, 2007
Performance of potential non‐crop or wild species under OECD 208 testing guideline study conditions for terrestrial non‐target plants
Authors: Pallett Ken , Cole Jon , Oberwalder Christian , Porch John 
Published: December 2006

AbstractThe inclusion of 52 potential non‐crop or wild species in new OECD guidelines for terrestrial non‐target plant (TNTP) testing led to a ring test conducted by four laboratories experienced in regulatory testing. Species selected had shown potential to meet validity criteria of emergence for TNTP studies in a previous evaluation of the 52 species. OECD 208 guideline conditions were applied, with and without seed pretreatments recommended to enhance germination. These species were Abutilon theophrasti (L.) Medic., Avena fatua L., Fallopia convolvulus (L.) Adans., Galium aparine L., Ipomoea hederacea (L.) Jacq. and Veronica persica Poir. Only I. hederacea met the validity criterion of 70% emergence in all laboratories and showed a low variability in biomass. Of the other species, none led to 70% emergence in all four laboratories. The recommended pretreatments did not have a major impact on emergence. Biomass was also investigated with A. theophrasti, A. fatua, Centaurea cyanus L., I. hederacea and Rumex crispus L. Variability of biomass, a key parameter in TNTP regulatory studies, exceeded normal biomass variability of crop species used for TNTP studies. The addition of a thin layer of quartz sand to the soil surface resulted in improved emergence of C. cyanus, G. aparine and V. persica; however, such a procedure, while routine in screening studies to improve germination, is a deviation from the TNTP guidelines. These initial studies indicate that some species could meet the emergence criteria for TNTP testing. However, there is a need for further studies on seed source, seed quality and conditions for uniform emergence before their use in routine regulatory testing. Copyright © 2006 Society of Chemical Industry
Soft magnetic performance improvement of Fe‐filled carbon nanotubes by water‐assisted pyrolysis route
Authors: Lv Ruitao , Kang Feiyu , Wang Wenxiang , Wei Jinquan , Zhang Xianfeng , Huang Zhenghong , Gu Jialin , Wang Kunlin , Wu Dehai 
Published: December 2006

AbstractWe prepared α‐Fe filled carbon nanotubes (CNTs) by introduction of appropriate water vapours during the growth process and found that the walls of carbon nanotubes are reduced effectively. It is also found that soft magnetic performances of Fe‐filled CNTs (Fe@CNTs) are improved remarkably compared with that without water assistance. When the flow of water was 0.04 mL/min, the saturation magnetization (Ms) value of Fe@CNTs reaches to 112.40 emu/g, which is about 3 times as high as that without water assistance. While the coercivity (Hc) value is 97.01 Oe, which is reduced to about 1/4 of that. These are favourable to their applications in magnetic fluid and electromagnetic wave absorbing in the future. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
FMR linewidths of YIG films fabricated by ex situ post‐annealing of amorphous films deposited by rf magnetron sputtering
Authors: Kang Young‐Min , Ulyanov Alexander N. , Yoo Sang‐Im 
Published: December 2006

AbstractFMR linewidths of Y3Fe5O12 (YIG) films fabricated by ex situ post‐annealing of amorphous films deposited by radio frequency magnetron sputtering are reported. Amorphous YIG films were deposited on both thermally oxidized Si(100) and Gd3Ga5O12 (GGG) (111) substrates and subsequently crystallized by ex situ post‐annealing (600–900 °C) in two different oxygen atmospheres (air and 500 ppm O2). The compositions of as‐deposited films were very sensitive to the oxygen partial pressure (P) of the sputtering gas. During the post‐annealing process, crystalline YIG phase started to grow upward on the substrates. High‐quality YIG films showing narrow FMR linewidths (ΔH) of 5.3 and 70 Oe for GGG and thermally oxidized Si substrates, respectively, could be grown from the amorphous films deposited in pure Ar gas, composed of the cation ratio (Y:Fe = 3.04:4.96) close to the stoichiometric YIG. A reduced oxygen annealing atmosphere was found more effective than air for obtaining narrower FMR linewidths. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Crystallization of Indium Tin Oxide Nanoparticles: From Cooperative Behavior to Individuality
Authors: Ba Jianhua , Feldhoff Armin , Fattakhova Rohlfing Dina , Wark Michael , Antonietti Markus , Niederberger Markus 
Published: December 2006

AbstractThe crystallization pathway of indium tin oxide nanoparticles during solvothermal synthesis in benzyl alcohol was investigated. The synthesis was stopped after different reaction times in the range of 1–24 h, and the structural and morphological characteristics of the products were analyzed by powder X‐ray diffraction, electron microscopy, and UV/Vis spectroscopy. Interestingly, the crystallization mechanism does not proceed along a simple nucleation and growth pathway, but involves a two‐step process. In the first 12 h an intermediate phase is formed, which consists of nanocrystallites 3–6 nm in size stabilized by an organic matrix. In this organic–inorganic network the nanoparticles are aligned into superstructures, but without any crystallographic orientation. After 12 h the intermediate phase is abruptly transformed into indium tin oxide nanoparticles with the bixbyite structure and with crystallite sizes of about 10–12 nm. This step is accompanied by the disappearance of the organic phase and the loss of the superstructure.
Nonscience majors learning science: A theoretical model of motivation
Authors: Glynn Shawn M. , Taasoobshirazi Gita , Brickman Peggy 
Published: December 2006

AbstractA theoretical model of nonscience majors' motivation to learn science was tested by surveying 369 students in a large‐enrollment college science course that satisfies a core curriculum requirement. Based on a social‐cognitive framework, motivation to learn science was conceptualized as having both cognitive and affective influences that foster science achievement. Structural equation modeling was used to examine the hypothesized relationships among the variables. The students' motivation, as measured by the Science Motivation Questionnaire (SMQ), had a strong direct influence on their achievement, as measured by their science grade point average. The students' motivation was influenced by their belief in the relevance of science to their careers. This belief was slightly stronger in women than men. Essays by the students and interviews with them provided insight into their motivation. The model suggests that instructors should strategically connect science concepts to the careers of nonscience majors through such means as case studies to increase motivation and achievement. © 2006 Wiley Periodicals, Inc. J Res Sci Teach 44: 1088–1107, 2007
Complete extirpation of benign breast lesions with an ultrasound‐guided vacuum biopsy system
Authors: Krainick‐Strobel U. , Huber B. , Majer I. , Bergmann A. , Gall C. , Gruber I. , Hoffmann J. , Paepke S. , Peisker U. , Walz‐Mattmüller R. , Siegmann K. , Wallwiener D. , Hahn M. 
Published: December 2006

AbstractObjectivesTo investigate whether ultrasound‐guided vacuum biopsy (VB) with curative intent is suitable for the complete extirpation of selected sonographically detectable benign lesions of the breast, and to establish the limitations of the method with regard to lesion size and complications, the extent of scar formation and the prognostic value.MethodsOne hundred and nine patients underwent hand‐held, ultrasound‐guided VB (8G or 11G needle) between June 2000 and September 2003. Of these, 45 (41%) women underwent ultrasound‐guided extirpation of 46 lesions, and 42 women with 43 lesions were followed up clinically and sonographically for an average of 5.9 months. The complete extirpation rate, residual lesions, and patient satisfaction with the intervention were evaluated.ResultsRemoval of all sonographic evidence of lesions (median diameter, 13 mm) was achieved in 86% of cases (8G needle, 80%; 11G needle, 89%). 19% of the patients had suspected scar formation at the biopsy site. A palpable lesion in the breast could be removed by VB in 90% of cases. None of the patients developed infections and there were no hemorrhages requiring intervention, or damage to the skin or chest wall. A total of 95% of the patients stated that they would prefer this approach to open excision for possible future intervention.ConclusionsVB is an ambulatory procedure associated with a low degree of pain. It has a high degree of patient acceptance and, as a minimally invasive biopsy technique for benign lesions, is a good alternative to open excision. The rate of complications is low and is similar to that observed with conventional microbiopsy. Copyright © 2006 ISUOG. Published by John Wiley & Sons, Ltd.
Nomograms of the axial fetal cerebellar hemisphere circumference and area throughout gestation
Authors: Sherer D. M. , Sokolovski M. , Dalloul M. , Pezzullo J. C. , Osho J. A. , Abulafia O. 
Published: December 2006

AbstractObjectiveThe widely applied transcerebellar diameter (TCD) obtained at axial cranial imaging, measures the distance between the lateral aspects of the cerebellum and incorporates the width of the cerebellar vermis. Our objective was to create reference ranges of axial fetal cerebellar hemisphere circumference (CHC) and area (CHA), independent of the cerebellar vermis, throughout gestation.MethodsThis cross‐sectional study involved pregnant patients between 14 and 41 weeks of gestation. Inclusion criteria consisted of well‐established dates (confirmed by early ultrasound), non‐anomalous singleton fetuses and intact amniotic membranes. Sonographic measurements included biparietal diameter (BPD), head circumference (HC), abdominal circumference (AC), femur length (FL), humerus length (HL), TCD, and estimated fetal weight (EFW). Values of axial fetal CHC and CHA were each calculated as the mean of three separate measurements. The 5th, 50thand 95thcentiles were estimated at each week of gestational age (GA) by least‐squares regression for the mean and standard deviation (SD) of the CHC and CHA as functions of GA.r2and associated P‐values for the relationships of CHC and CHA with other sonographic biometric measurements were calculated.ResultsThe study included 651 consecutive patients. All attempts at obtaining axial fetal CHC and CHA were successful. Mean maternal age was 27.3 ± 6.7 years, median gravidity was 1 (range 1–16), and median parity was 1 (range 0–6). Mean CHC (cm) throughout gestation was modeled as − 2.091 + 0.2563 ×GA(weeks) (SD = − 0.075 + 0.0164 ×GA), and mean CHA (cm2) was modeled as 0.245–0.0765 ×GA+ 0.00506 ×GA2(SD = 1.167 − 0.1565 ×GA+ 0.006785 ×GA2− 0.00008028 ×GA3). Fetal axial CHC and CHA correlated significantly and strongly with BPD, HC, AC, HL, FL, TCD and EFW (all R2values were ≥ 0.95, and allP‐values were < 0.001).ConclusionNomograms of axial fetal cerebellar hemisphere circumference and area throughout gestation, independent of the cerebellar vermis, have been provided. Copyright © 2006 ISUOG. Published by John Wiley & Sons, Ltd.