bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effects of bending on impedance and radiation characteristics of rectangular wearable antenna utilizing smart clothes
Authors: Sankaralingam S. , Gupta Bhaskar 
Published: March 2012

AbstractThe electronics that facilitate our daily pursuits and interactions may soon be integrated into textiles in all areas of our near environment. These “Interactive Electronic Textiles” are also called “Electro‐textiles” or “Smart Clothes” and find niches in many applications. Opportunities exist for electro‐textiles in fashion and industrial apparel, residential and commercial interior, military, medical, and industrial textile markets. Electro‐textiles are developed for communication, entertainment, health, and safety. Electro‐textile technologies may soon integrate multiple electronic devices directly into textile and apparel products using shared resources increasing the mobility, comfort and convenience of such devices. For example, communication devices may be integrated into products such as garments. Smart clothes will emerge in various sports outfits, emergency workers' outfits, military, medical, space applications, and so on. The ability to establish wireless communication link is an essential requirement for smart clothes. In this article, the impedance characteristics of a rectangular wearable patch antenna for such wireless data communication using smart clothes have been examined under flat and bent position. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:1508–1511, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26849
Automated frequency tracking system for efficient mid‐range magnetic resonance wireless power transfer
Authors: Kim Nam Yoon , Kim Ki Young , Kim Chang‐Woo 
Published: March 2012

AbstractAn automated frequency tracking system is implemented for an efficient mid‐range magnetic resonance wireless power transfer based on an analysis of a wireless power link consisting of transmitting and receiving resonators placed in a strong coupling region.The proposed tracking system is designed to maintain a power transfer efficiency of more than 70% for any transfer distance range by directly monitoring the efficiency via out‐band communication. The advantage of the proposed system over other frequency tracking schemes is that the performance of the resonators and power amplifier can be applied to the tracking algorithm. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:1423–1426, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26858
Simulation of properties of the transverse modal electric field of an infinite parabolic multimode fiber
Authors: Amphawan Angela , Alabdalleh Wa'el Ali 
Published: March 2012

AbstractThe visualization of the modal electric field for an infinite parabolic multimode fiber may not be immediately intuitive due to the intricate nature of the Laguerre function. To capture the essence of the various properties of the transverse modal electric field of the infinite parabolic multimode fiber, various simulations are drawn on and key observations are made. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:1362–1365, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26861
Comparison of analysis approaches for phase III clinical trials in amyotrophic lateral sclerosis
Authors: Healy Brian C. , Schoenfeld David 
Published: March 2012

AbstractIntroduction: In this study we explore several methods for incorporating survival information in the analysis of Amyotrophic Lateral Sclerosis Functional Rating Scale (ALSFRS) scores. Methods: ALSFRS scores and patient survival times were simulated based on estimates from a recent clinical trial. Six analysis approaches were applied to the data. Each approach was based on ALSFRS scores, the survival time, or a combination of the 2. The power of each approach to detect potential treatment effects was estimated. Results: When the treatment acted solely on the change in ALSFRS, the shared parameter model provided the most power, although all of the models based on random effects were similar. As the effect on survival increased, rank‐based analysis showed potential gains in power. Survival analysis was superior under a small effect on ALSFRS and a larger effect on mortality. Conclusions: The shared parameter model and rank‐based approach can offer improvements in power over traditional approaches. Muscle Nerve 46: 501–511, 2012
Psychometric properties of the Spanish version of the health‐promoting lifestyle profile II
Authors: Pérez‐Fortis Adriana , Ulla Díez Sara M. , Padilla Jose‐Luis 
Published: March 2012

AbstractThe Health‐Promoting Lifestyle Profile II (HPLPII) has been psychometrically validated across several linguistic and cultural groups; however the Spanish version has not been psychometrically tested for the Spanish population. The purpose of this research was to evaluate the reliability and factor structure of the Spanish version of the HPLPII for Spanish people. Principal component analysis (PCA) revealed that a six‐component model for 44 items accounted for 40% of the variance, and the scale had an internal consistency of .87. Confirmatory factor analysis demonstrated that a better fit of the six‐component structure emerged from the PCA than from the model proposed in the original version of the HPLPII, suggesting that the health‐promoting lifestyle might be sensitive to context and culture. © 2012 Wiley Periodicals, Inc. Res Nurs Health 35:301–313, 2012
A feasibility and efficacy study of rapamycin and erlotinib for recurrent pediatric low‐grade glioma (LGG)
Authors: Yalon Michal , Rood Brian , MacDonald Tobey J. , McCowage Geoff , Kane Rochelle , Constantini Shlomi , Packer Roger J. 
Published: March 2012

AbstractBackgroundTo determine the toxicity and efficacy of rapamycin and erlotinib for the treatment of recurrent pediatric low‐grade gliomas (LGGs).MethodsPatients <21 years of age with recurrent LGGs who had failed conventional treatment were eligible, including those with NF1. The treatment consisted of two phases, a feasibility portion which assessed the toxicity of erlotinib at 65 mg/m2/day once daily and rapamycin at 0.8 mg/m2/dose twice daily for 28 consecutive days.ResultsNineteen (19) patients, median age of 8 years, with recurrent LGGs received the two‐drug regimen. Eight (8) of the patients had NF1. The combination of erlotinib and rapamycin was well tolerated and no patient was removed from study due to toxicity. All 19 patients were evaluable for response and one child, with NF1, had a partial response to treatment. Six (6) patients received the planned 12 courses of treatment. The reasons for stoppage of therapy before 1 year of treatment were poor compliance (1), parental desire for withdrawal (1), persistent vomiting which pre‐dated initiation of therapy (1), and radiographic progression (10). In those patients with stabilization of disease for 12 months or greater, 3 stayed on therapy and ultimately developed progressive disease, and one patient stopped therapy at 12 months and progressed. Two (2) patients, both with NF1, have had >1 year disease control.ConclusionsThe combination of rapamycin and erlotinib is well tolerated in children with LGGs. Objective responses were infrequent, although there was prolonged disease stabilization in some patients with LGGs, especially in two children with NF1. Pediatr Blood Cancer 2013; 60: 71–76. © 2012 Wiley Periodicals, Inc.
Swelling, pH sensitivity, and mechanical properties of poly(acrylamide‐co‐sodium methacrylate) nanocomposite hydrogels impregnated with carboxyl‐functionalized carbon nanotubes
Authors: Liu Zhanqing , Yang Zupei , Luo Yanling 
Published: March 2012

AbstractA series of novel nanocomposite hydrogels were prepared by a cross‐linking copolymerization method. Structural and morphological characterizations of the nanocomposite hydrogels revealed that a good compatibility exists between poly(acrylamide‐co‐sodium methacrylate) [P(AM‐co‐SMA)] and carboxyl‐functionalized carbon nanotubes (MWNTs–COOH). The P(AM‐co‐SMA)/MWNTs–COOH nanocomposite hydrogels with a suitable MWNTs–COOH loading exhibited better swelling capability, higher pH sensitivity, good reversibility, and repeatability, and rapid response to external pH stimuli, compared with the P(AM‐co‐SMA). The compression mechanical tests revealed that the nanocomposite hydrogel displayed excellent compressive strengths and elastic mechanical properties, with higher ultimate compressive stress, and meanwhile still retain a good recoverable strain in the presence of MWNTs–COOH. These excellent properties may primarily be attributed to effectively dispersing of a suitable MWNTs–COOH loading into the matrix of the polymers and formation of additional hydrogen bonds. The nanocomposite hydrogels were expected to find applications in drug controlled release and issue engineering. POLYM. COMPOS., 2012. © 2012 Society of Plastics Engineers
Study of pH/temperature dual stimuli‐responsive nanogels with interpenetrating polymer network structure
Authors: Liu Xiaoyun , Guo Hui , Zha Liusheng 
Published: March 2012

AbstractNanogels with interpenetrating polymer network (IPN) structure based on poly(N‐isopropylacrylamide) (PNIPAM) and poly(acrylic acid) (PAA) were synthesized by in situ polymerization of acrylic acid and N, N′‐methylenebisacrylamide within the PNIPAM nanogels. Their IPN structure was confirmed using transmission electron microscopy after staining by uranyl acetate. The temperature‐ or pH‐dependent hydrodynamic diameters measured using dynamic laser light scattering show that the IPN nanogels have pH and temperature dual stimuli‐responsive properties. As compared to previously reported pH/temperature dual stimuli‐responsive nanogels, these IPN nanogels have the advantage of less mutual interference between the temperature‐responsive and pH‐responsive components, which is beneficial for their applications in controlled drug release and sensors. The temperature‐ and pH‐triggered volume phase transition mechanisms of the IPN nanogels were tested by probing the microenvironment change of their PNIPAM and PAA chains upon phase transition using infrared (IR) absorption spectra measured at different pH values and IR difference spectra obtained by subtracting the IR spectrum obtained before temperature‐induced phase transition from that obtained after phase transition. Copyright © 2012 Society of Chemical Industry
Thermo‐ and pH‐responsive microgels for controlled release of insulin
Authors: Bai Yunyan , Zhang Zhe , Deng Mingxiao , Chen Li , He Chaoliang , Zhuang Xiuli , Chen Xuesi 
Published: March 2012

AbstractMicrogel particles were prepared, made of hydroxypropylcellulose‐graft‐(acrylic acid) (HPC‐g‐AA) and acrylic acid(AA). The particles undergo reversible volume phase transitions in response to both pH and temperature changes while keeping the inherent properties of PAA and HPC‐g‐AA. Dynamic light scattering measurements reveal that the average hydrodynamic radius and hydrodynamic radius distributions of the microgel particles depend on temperature and pH. The microgels exhibit excellent pH sensitivity and a higher swelling ratio at higher pH in aqueous solution. In vitro release study shows that the amount of insulin released from the microgels is less at pH = 1.2 than at pH = 6.8. The results indicate that the resultant microgels seem to be of great potential for intelligent oral drug delivery. Copyright © 2012 Society of Chemical Industry
Particle Size Distribution of Multimodal Polymer Dispersions by Multiangle Dynamic Light Scattering. Solution of the Inverse Problem on the Basis of a Genetic Algorithm
Authors: Clementi Luis A. , Vega Jorge R. , Gugliotta Luis M. 
Published: March 2012

AbstractA method for estimating the particle size distribution (PSD) of dilute latexes from multiangle dynamic light scattering (MDLS) measurements is presented. The estimation procedure includes two main steps: 1) the calculation of the angle‐dependent average diameters of the PSD from MDLS measurements, and 2) the estimation of the PSD through an optimization strategy based on a genetic algorithm (GA). First, the capability of the method was tested on the basis of three simulated examples that involved different PSD shapes, widths, and diameter ranges. Then, the method was employed for estimating the PSD of three samples: a polystyrene latex standard of narrow PSD and known nominal diameter; a mixture of two polystyrene standards of narrow PSDs; and an industrial latex of unknown composition. For comparison, all examples were also solved by numerical inversion of the MDLS autocorrelation measurements through a linear constrained Tikhonov regularization technique. The proposed method appears as an effective and robust tool for characterizing unimodal and multimodal PSDs, without requiring any a priori assumption on the mode shapes or on the PSD diameter range.
Blending Theory with Practice: Implementing Kindergarten Transition Using the Interactive Systems Framework
Authors: Smythe-Leistico Ken J. , Young Colleen P. , Mulvey Laurie A. , McCall Robert B. , Petruska Margaret , Barone-Martin Carole , Capozzoli Renata , Best Tiffani , Coffee Barbara A. 
Published: March 2012

AbstractThe Interactive Systems Framework (ISF; Wandersman et al. in Am J Commu Psychol 41(3–4):171–181, 2008) was used to implement a kindergarten transition demonstration project collaboratively developed by elementary and early education providers, community‐based family and housing services, parents, and a University intermediary and technical assistance group. First person accounts from stakeholders at all levels provide a complementary and broad perspective on the project's implementation. The practice model blended existing research on kindergarten transition and parent involvement with feedback from stakeholders to create a community‐specific program designed to help all children make a smooth entry into kindergarten. During implementation, evidence‐based approaches needed to be adjusted to fit the specific needs of each community. Using the ISF as a guide, next steps and lessons learned include increasing leadership through a district‐wide plan that is still flexible within each school community, increasing information and supports to individual schools, and improving data collection for continuous program improvement.Special Issue: Advances in Bridging Research and Practice Using the Interactive System Framework for Dissemination and Implementation; Guest Editors: Abraham Wandersman, Paul Flaspohler, Catherine A. Lesesne, Richard Puddy; Action Editor: Emilie Phillips Smith
Gay, Lesbian, and Bisexual Patients’ Recommendations for Genetic Counselors: A Qualitative Investigation
Authors: VandenLangenberg Erin , Veach Patricia McCarthy , LeRoy Bonnie S. , Glessner Heather Dean 
Published: March 2012

AbstractGay, lesbian, and bisexual (GLB) individuals comprise a growing patient population in genetic counseling. However, only one article from a genetic counseling journal provides empirical data on GLB patients’ genetic counseling experiences and genetic counselor attitudes and practices regarding GLB patients. The present study, an extension of the aforementioned article, gathered further information about patients’ genetic counseling experiences through semi‐structured telephone interviews. Twelve of the previous study's 29 patient respondents (n = 10 lesbian women, n = 1 gay man, n = 1 bisexual woman) participated. Interview questions concerned the use of medically inclusive forms, factors influencing patient disclosure, counselors’ ability to relate to them, and their expectations of genetic counselors. Inductive analysis of the interviews yielded seven themes: 1) Medically inclusive forms with gender neutral terms are important; 2) Genetic counselor ability to relate to a GLB person depends more on the relationship established during the session and less on external symbols; 3) The presence of GLB‐friendly symbols increases comfort when disclosing one's orientation; 4) Inclusion of the patient's partner is important and best done by encouraging their active participation in sessions; 5) When GLB patients disclose their orientation, they expect to be treated like any other patient; 6) Providers should ask about orientation if medically pertinent and the remaining discussion should take orientation into consideration; and 7) When a provider inquires about orientation it should be done in a safe and appropriate way. Illustrative quotations, genetic counseling practice implications, and research recommendations are presented.
Wrong Site Surgery—Where are We and What is the Next Step?
Authors: Cobb Tyson K. 
Published: March 2012

Background Wrong site surgery is estimated to occur 40 times per week in hospitals and clinics in USA. The universal protocol was implemented by the joint commission board of commissioners to address wrong site, wrong procedure, and wrong person surgery. Discussion The universal protocol has three principal components: preoperative verification, marking of the operative site, and a time-out. Despite this organized approach to this problem, current data do not demonstrate any progress. In fact some data suggest that the problem may be getting worse. It is apparent that a process relying on surgeon and surgical team memory is doomed to ultimate failure. Recommendations are made for a more in depth checklist process based on the recommendations of the World Health Organization, reports in the literature of known areas of weakness in the current process, and personal experience in hopes of establishing a more bullet proof system to avoid wrong site procedure.
Automated High‐Throughput Fatty Acid Analysis of Umbilical Cord Serum and Application to an Epidemiological Study
Authors: Lin Yu Hong , Salem Norman , Wells Ellen M. , Zhou Weiyin , Loewke James D. , Brown James A. , Lands William E. M. , Goldman Lynn R. , Hibbeln Joseph R. 
Published: March 2012

AbstractLarge population studies show that polyunsaturated fatty acids are important for human health, but determining relationships between the health benefits and the fatty acid content has been hampered by the unavailability of labor‐effective high‐throughput technologies. An automated high throughput fatty acid analysis was developed from a previous procedure based on direct transesterification including the automation of chemical procedures, data acquisition and automatic data processing. The method was validated and applied to umbilical cord serum samples in an epidemiological study. The method was linear in the range of 1–600 μg/mL serum with r2 ≥0.99. The within‐run CV was <5.4% for 23 fatty acids and a range of recoveries over three concentrations were 76–119% in a low‐lipid matrix with the exception of 14:0. The fatty acid concentration as measured by the robotic method for human plasma was in good agreement with the Lepage & Roy method. The fatty acid profile in umbilical cord serum from American subjects (n = 287) showed an average of 38.0, 24.9, 32.0 and 4.6% of total fatty acids for saturates, monounsaturates, n‐6 and n‐3 polyunsaturates, respectively. This is the first report of a complete, validated, cost‐effective, automated, high throughput fatty acid measurement method along with application to a population‐based study. Automated fatty acid analysis coupled with automated data processing greatly facilitates the high throughput, 72 samples transesterified in 6 h, required for large population‐based studies.
Indirect Method for Simultaneous Determinations of 3‐Chloro‐1,2‐Propanediol Fatty Acid Esters and Glycidyl Fatty Acid Esters
Authors: Miyazaki Kinuko , Koyama Kazuo , Sasako Hiroshi , Hirao Takashi 
Published: March 2012

AbstractRecent concerns about potential health risks associated with 3‐chloro‐1,2‐propanediol fatty acid esters (3‐MCPD esters) and glycidyl fatty acid esters (GEs) in refined vegetable oils and fats have led to development of various methods for quantitative determinations of these compounds. Among them, indirect methods, which determine total amount of 3‐MCPD and glycidol after hydrolysis of the esters, have an advantage over direct methods, which require a reference standard for each of the many possible species of fatty acid esters to be quantified. The existing indirect methods, however, may yield unreliable results or require long hours of alkaline methanolysis. To overcome these shortcomings, the objective of this study was to develop a reliable and rapid indirect method for simultaneous determinations of 3‐MCPD esters and GEs. By using Candida rugosa lipase and sodium bromide for a hydrolysis/bromination step, 3‐MCPD esters and GEs were transformed within 30 min to 3‐MCPD and 3‐bromo‐1,2‐propanediol (3‐MBPD), respectively, without interconversion. Gas chromatography–mass spectrometry (GC–MS) analysis of 3‐MCPD and 3‐MBPD derivatized with phenylboronic acid showed 89–108 % recovery of 3‐MCPD‐diesters, ‐monoesters, and GEs from various oils and fats spiked at 2 and 20 mg/kg. The method should be useful for routine analysis of 3‐MCPD esters and GEs.
Impact of mechanized harvesting on compaction of sandy and clayey forest soils: results of a meta-analysis
Authors: Ampoorter Evy , de Schrijver An , van Nevel Lotte , Hermy Martin , Verheyen Kris 
Published: March 2012

AbstractContextNowadays, harvest operations are predominantly performed fully mechanized using heavy tractors or forestry machines. The resulting soil compaction may negatively affect the soil ecosystem.AimsWe wanted to draw general conclusions concerning the impact of mechanized harvesting on forest soil bulk density and the influencing factors.MethodTherefore, we combined the data of several studies using a meta-analysis approach.ResultsThe impact decreased from the surface towards deeper soil layers. At 0–10 cm depth, the impact on clayey soils was highest although not significantly different from the impact on sandy soils. Higher initial bulk densities, i.e., on already compacted forest soils, generally led to smaller extra increases of bulk density after machine traffic. For sandy soils, the impact was also significantly smaller when machines were lighter. No significant relationship was observed between the compaction degree and traffic intensity.ConclusionsWe observed clear compaction on both clayey and sandy soils, especially in case of low initial soil compaction degrees and heavy machines. The compacted initial state of many forest soils, the long recovery period, and the generally high impact of the first passes that is frequently mentioned in literature all count in favour of designated skid trails and an adjustment of the machine type to the job.