bluuebunny/crossref_metadata_2025_split huggingface dataset:
Use of an Internet Portal to Improve Community-Based Pediatric ADHD Care: A Cluster Randomized Trial
Authors: Epstein Jeffery N. , Langberg Joshua M. , Lichtenstein Philip K. , Kolb Rebecca , Altaye Mekibib , Simon John O. 
Published: October 2011

OBJECTIVE:
To determine the effectiveness of a quality improvement program to improve pediatricians' adherence to existing, evidence-based, attention-deficit/hyperactivity disorder (ADHD) practice guidelines.

METHODS:
Forty-nine community-based pediatricians at 8 practices participated in a cluster-randomized trial. Practices were matched according to the numbers of pediatricians and the proportions of patients receiving Medicaid. The medical charts for a random sample of patients with ADHD for each of the participating pediatricians were examined at baseline and 6 months. All practices participated in 4 sessions of training, including didactic lectures and office flow modification workshops. Practices were then given access to an ADHD Internet portal that allowed parents, teachers, and pediatricians to input information (eg, rating scales) about patients, after which information was scored, interpreted, and formatted in a report style that was helpful for assessment and treatment of patients with ADHD. Physicians evaluated their practice behaviors quarterly and addressed underperforming areas.

RESULTS:
Pediatricians in the intervention group, compared with those in the control group, demonstrated significantly higher rates of many American Academy of Pediatrics–recommended ADHD care practices, including collection of parent (Cohen's d = 0.69) and teacher (d = 0.68) rating scales for assessment of children with ADHD, use of Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, criteria (d = 0.85), and use of teacher rating scales to monitor treatment responses (d = 1.01).

CONCLUSION:
A quality improvement intervention that can be widely disseminated by using Internet-based information technology significantly improved the quality of ADHD care in community-based pediatric settings.
Profanity in Media Associated With Attitudes and Behavior Regarding Profanity Use and Aggression
Authors: Coyne Sarah M. , Stockdale Laura A. , Nelson David A. , Fraser Ashley 
Published: October 2011

OBJECTIVE:
We hypothesized that exposure to profanity in media would be directly related to beliefs and behavior regarding profanity and indirectly to aggressive behavior.

METHODS:
We examined these associations among 223 adolescents attending a large Midwestern middle school. Participants completed a number of questionnaires examining their exposure to media, attitudes and behavior regarding profanity, and aggressive behavior.

RESULTS:
Results revealed a positive association between exposure to profanity in multiple forms of media and beliefs about profanity, profanity use, and engagement in physical and relational aggression. Specifically, attitudes toward profanity use mediated the relationship between exposure to profanity in media and subsequent behavior involving profanity use and aggression.

CONCLUSIONS:
The main hypothesis was confirmed, and implications for the rating industry and research field are discussed.
First principles study of defects in solid electrolyte lithium thiophosphate Li7P3S11
Authors: Xiong Ka , Wang Weichao , Pazos Roberto Longo , Cho Kyeongjae 
Published: October 2011

ABSTRACTWe investigate the electronic structure of interstitial Li and Li vacancy in Li7P3S11 by first principles calculations. We find that Li7P3S11 is a good insulator with a wide band gap of 3.5 eV. We find that the Li vacancy and interstitial Li+ ion do not introduce states in the band gap hence they do not deteriorate the electronic properties of Li7P3S11. The calculated formation energies of Li vacancies are much larger than those of Li interstitials, indicating that the ion conductivity may arise from the migration of interstitial Li.
Future Directions for Ion Beam Technology and Research: Forum Report
Authors: Baglin John E.E. , Ila Daryush 
Published: October 2011

ABSTRACTAs an integral part of the Symposium on "Ion Beams - Applications from Nanoscale to Mesoscale" at the MRS Spring 2011 Meeting, participants were invited to join two open “brainstorming” Forum Discussions, intended to highlight opportunities for application of ion beam techniques in advancing the frontiers of materials research and making high impact contributions to solving some of the world’s major issues for the future. Participants were invited to imagine freely how the field might develop (or be steered) in the next 5-10 years, in the light of the current state of the art, and in the light of the emerging needs of the global community.The resulting ideas and suggestions led to thoughtful discussions, that displayed a remarkable degree of consensus on future directions, opportunities and challenges for the field. This paper attempts to capture and report briefly the spectrum of ideas and the recommended priorities that emerged from the resulting discussions.
Nonlinear quenching rates in SrI2 and CsI scintillator hosts
Authors: Grim Joel Q. , Li Qi , Ucer K.B. , Williams R.T. , Burger A. , Bhattacharya P. , Tupitsyn E. , Bizarri G. A. , Moses W.W. 
Published: October 2011

ABSTRACTUsing 0.5 ps pulses of 5.9 eV light to excite electron-hole concentrations varied up to 2x1020 e-h/cm3 corresponding to energy deposition within electron tracks, we measure dipole-dipole quenching rate constants K2 in SrI2 and CsI. We previously reported determination of K2 directly from the time dependence of quenched STE luminescence in CsI. The nonlinear quenching rate decreases rapidly within a few tens of picoseconds as the host excitation density drops below the Förster threshold. In the present work, we measure the dependence of integrated light yield on excitation density in the activated scintillators SrI2:Eu2+ and CsI:Tl+. The “z-scan” method of yield vs. irradiance is applicable to a wider range of materials, e.g. when the quenching population is not the main light-emitting population. Furthermore, because of using an integrating sphere and photomultiplier for light detection, the signal-to-noise is substantially better than the time-resolved method using a streak camera. As a result, both 2nd and 3rd orders of quenching (dipole-dipole and Auger) can be distinguished. Detailed comparison of SrI2 and CsI is of fundamental importance to help understand why SrI2 achieves substantially better proportionality than CsI in scintillator applications. The laser measurements, in contrast to scintillation, allow evaluating the rate constants of nonlinear quenching in a population which has small enough spatial gradient to suppress the effect of carrier diffusion.
Peculiarities of REBCO Films Growth on Single Crystalline Substrates
Authors: Tretiatchenko Constantin G. , Flis Victor S. , Svetchnikov Vassily L. , Pan Volodymyr M. 
Published: October 2011

ABSTRACTWe suggest a model of mismatched interface and calculate its energy in order to describe formation of threading edge dislocations by the mechanism of rotational relaxation of interface stresses. The model takes into account strongly layered perovskite structure of high-temperature superconductors. We have shown that rotational relaxation occurs due to finite size of clusters and to non-equilibrium effect of the film growth. We have predicted the subgrain size and the expected rotation of domains depending on the lattice mismatch. The computed values are consistent with the observed YBCO film nanostructure.
L'institution militaire confrontée aux réformes organisationnelles
Authors: Jakubowski Sébastien 
Published: October 2011

Résumé Cet article s’appuie sur le cas de la professionnalisation des armées françaises, plus particulièrement sur la récente réforme de modernisation, pour défendre l’hypothèse que les institutions publiques d’État sont aujourd’hui déstabilisées et en tension, dans le cadre du processus de transformation, par leur dimension organisationnelle. D’un côté, la réforme adopte une perspective résolument institutionnelle : les missions de l’institution ne changent pas, mais les moyens sont rationalisés (baisse des crédits, réorganisation structurelle et territoriale). D’un autre côté, la réforme adopte une perspective plus organisationnelle : les missions sont modifiées par le politique, mais les moyens ne sont pas adaptés (nouveau cadre stratégique, banalisation de l’institution). L’article entend poser les bases de ce diagnostic et montrer que ce glissement vers une logique organisationnelle appelle à une recomposition de l’institution sur de nouvelles bases d’action.
Flagellin, a TLR5 Agonist, Reduces Graft-versus-Host Disease in Allogeneic Hematopoietic Stem Cell Transplantation Recipients While Enhancing Antiviral Immunity
Authors: Hossain Mohammad S. , Jaye David L. , Pollack Brian P. , Farris Alton B. , Tselanyane Malefa L. , David Ebenezer , Roback John D. , Gewirtz Andrew T. , Waller Edmund K. 
Published: October 2011

Abstract
Graft-versus-host disease (GVHD) is a major cause of morbidity and mortality in patients treated with allogeneic hematopoietic stem cell transplantation (HSCT). Posttransplant immunosuppressive drugs incompletely control GVHD and increase susceptibility to opportunistic infections. In this study, we used flagellin, a TLR5 agonist protein (∼50 kDa) extracted from bacterial flagella, as a novel experimental treatment strategy to reduce both acute and chronic GVHD in allogeneic HSCT recipients. On the basis of the radioprotective effects of flagellin, we hypothesized that flagellin could ameliorate GVHD in lethally irradiated murine models of allogeneic HSCT. Two doses of highly purified flagellin (administered 3 h before irradiation and 24 h after HSCT) reduced GVHD and led to better survival in both H-2b → CB6F1 and H-2K → B6 allogeneic HSCT models while preserving &gt;99% donor T cell chimerism. Flagellin treatment preserved long-term posttransplant immune reconstitution characterized by more donor thymic-derived CD4+CD25+Foxp3+ regulatory T cells and significantly enhanced antiviral immunity after murine CMV infection. The proliferation index and activation status of donor spleen-derived T cells and serum concentration of proinflammatory cytokines in flagellin-treated recipients were reduced significantly within 4 d posttransplant compared with those of the PBS-treated control recipients. Allogeneic transplantation of radiation chimeras previously engrafted with TLR5 knockout hematopoietic cells showed that interactions between flagellin and TLR5 expressed on both donor hematopoietic and host nonhematopoietic cells were required to reduce GVHD. Thus, the peritransplant administration of flagellin is a novel therapeutic approach to control GVHD while preserving posttransplant donor immunity.
Gore-Tex Medialization Thyroplasty in Patients with Unilateral Vocal Cord Paralysis: An Audit of 47 Cases
Authors: Gopinath M , Subramanian Mukundan 
Published: October 2011

ABSTRACT
Though the surgical technique of medialization thyroplasty has been standardized, still the ideal implant has not been defined in the management of unilateral vocal cord paralysis. The authors present their experience of Gore-tex as the implant material.
Laryngeal Schwannoma Excision by Lateral Pharyngotomy
Authors: Chandra Satish T , Rao Sudhakar M , Kumar Ajay Y , Murthy PSN 
Published: October 2011

ABSTRACT
Neurogenic tumors of the larynx are extremely rare. Here, we are reporting a case of laryngeal schwannoma presenting as supraglottic submucosal lesion with hoarseness and stridor, which was excised by lateral pharyngotomy approach. This presentation is to further discuss the histology of neurogenic tumors, modes of presentation, differential diagnosis and treatment modalities.
Cancelation of unknown multiharmonic disturbance for nonlinear plant with input delay
Authors: Bobtsov A. A. , Pyrkin A. A. 
Published: October 2011

SUMMARYIn this paper, a new approach for cancelation of a multiharmonic disturbance is proposed. Compared with a number of known results in this paper, the disturbance cancelation problem is solved when the output variable is measured only, a relative degree of the plant is arbitrary and the control channel has delay. The numerical example is presented to illustrate the theoretical result. The reaction wheel pendulum on a movable platform is considered as the plant to demonstrate that the proposed approach is realizable and can be plugged in practice. The second goal is the development of mechatronic applications for use in education. Copyright © 2011 John Wiley & Sons, Ltd.
Asymptotic stability, ℓ2 gain, boundness analysis, and control synthesis for switched systems: a switching frequency approach
Authors: Xiang Weiming , Xiao Jian , Iqbal Muhammad Naveed 
Published: October 2011

SUMMARYIn this paper, several concepts of switching frequency are introduced to analyze the properties and performance of switched systems in infinite as well as finite‐time intervals. The observation is very motivating that different system properties and performances depend on different switching frequencies. Sufficient conditions ensuring asymptotic stability, ℓ2 gain performance, and state boundness are derived on the basis of the notions of switching frequency, respectively. Then, on the basis of the analysis results, the control synthesis problems are addressed. LMI‐based design algorithms are proposed to meet different control synthesis requirements. Numerical design examples are provided to demonstrate our results. Copyright © 2011 John Wiley & Sons, Ltd.
Reversible Magnetic Field Induced Strain in Ni2MnGa‐Polymer‐Composites
Authors: Kauffmann‐Weiss Sandra , Scheerbaum Nils , Liu Jian , Klauss Hansjörg , Schultz Ludwig , Mäder Edith , Häßler Rüdiger , Heinrich Gert , Gutfleisch Oliver 
Published: October 2011

AbstractComposite materials consisting of magnetic shape memory alloy particles and a polymer matrix combine the advantages of both material classes: the high achievable magnetic field induced strain (MFIS) of 6% of Ni‐Mn‐Ga with a ductile matrix. Engineering the particle‐matrix interface as well as matching stiffness of polymer matrix is of importance for achieving high reversible MFIS to use this material as actuator or damper. We investigated those properties for Ni50.9Mn27.1Ga22.0 and Ni50.3Mn24.6Ga25.1 polymer composites. Particles were produced by gently crushing melt‐extracted and subsequently annealed fibres. At room temperature, the Ni50.9Mn27.1Ga22.0 particles exhibit a 5M martensitic structure, while the Ni50.3Mn24.6Ga25.1 particles are austenitic. These particles were embedded into the polymer, either a stiff epoxy resin or a soft polyurethane. In response to an external applied magnetic field, the particles tend to relocate within the polyurethane due to its very low Young's modulus and magnetostatic interaction between particles. Slightly stiffer polymer matrices are advantageous for achieving controllable MFIS. In Ni50.9Mn27.1Ga22.0 epoxy composites, a MFIS of 0.1% was observed and was resettable by rotating the magnetic field by 90°. Furthermore, single fibre pull‐out tests indicated significant improvements of the interfacial properties when using silane coupling agent treated fibres.
Bioactive TiOB‐Coating on Titanium Alloy Implants Enhances Osseointegration in a Rat Model
Authors: Schrader Christian , Schmidt Jürgen , Diefenbeck Michael , Mückley Thomas , Zankovych Sergiy , Bossert Jörg , Jandt Klaus D. , Faucon Mathilde , Finger Ulrich 
Published: October 2011

AbstractThe surface properties of titanium alloy implants for improved osseointegration in orthopaedic and dental surgery have been modified by many technologies. Hydroxyapatite coatings with a facultative integration of growth factors deposited by plasma spraying showed improved osseointegration. Our approach in order to enhance osseointegration was carried out by a surface modification method of titanium alloy implants called plasma chemical oxidation (PCO). PCO is an electrochemical procedure that converts the nm‐thin natural occurring titanium‐oxide layer on an implant to a 5 µm thick ceramic coating (TiOB‐surface). Bioactive TiOB‐surfaces have a porous microstructure and were loaded with calcium and phosphorous, while bioinert TiOB‐surfaces with less calcium and phosphorous loadings are smooth. A rat tibial model with bilateral placement of titanium alloy implants was employed to analyze the bone response to TiOB‐surfaces in vivo. 64 rats were randomly assigned to four groups of implants: (i) pure titanium alloy (control), ii) titanium alloy, type III anodization, (iii) bioinert TiOB‐surface, and (iv) bioactive TiOB‐surface. Mechanical fixation was evaluated by pull out tests at 3 and 8 weeks.The bioactive TiOB‐surface showed significantly increased shear strength at 8 weeks compared to all other groups.
Development and Characterization of Electropsun Poly(propylene carbonate) Ultrathin Fibers as Tissue Engineering Scaffolds
Authors: Nagiah Naveen , Sivagnanam Uma Tiruchirapalli , Mohan Ranganathan , Srinivasan Natarajan Tirupattur , Sehgal Praveen Kumar 
Published: October 2011

AbstractElectrospinning is a desired method to produce ultrathin fibers for tissue engineering. In order to mimic the nanofibrous structure of the extracellular matrix (ECM) poly(propylene carbonate) ultrathin fibers were electrospun using N,N‐dimethyl acetamide as solvent. Cationic surfactant, cetyl trimethyl ammonium bromide, was found to aid in the formation of beadless fibers of poly(propylene carbonate). Electrospinning parameters viz. concentration of polymer and that of the surfactant used as an additive, flow rate, electrostatic field, and effect of inner diameter of the needle were investigated and optimized. Scanning electron microscopy showed porous scaffold and fibers of diameter ranging from nano‐ to submicron range. FTIR spectroscopy and thermal analysis of the obtained fibers ensured the complete evaporation of solvent and optimal thermal stability of fibers for tissue engineering applications. The prepared fibers possess Young's modulus of 10.19 and 26.39 GPa with the tensile strengths of 22.11 and 21.29 MPa under dry and wet conditions, respectively. The fiber mat was measured to have a porosity of 48% and exhibited competent water retention capacity of 64%. Furthermore the scaffold was found to support the adhesion of mouse NIH 3T3 fibroblasts proving its mettle as a potential scaffold for tissue engineering applications.
Development of an evidence‐based review with recommendations using an online iterative process
Authors: Rudmik Luke , Smith Timothy L. 
Published: October 2011

AbstractBackground:The practice of modern medicine is governed by evidence‐based principles. Due to the plethora of medical literature, clinicians often rely on systematic reviews and clinical guidelines to summarize the evidence and provide best practices. Implementation of an evidence‐based clinical approach can minimize variation in health care delivery and optimize the quality of patient care.Methods:This article reports a method for developing an “Evidence‐based Review with Recommendations” using an online iterative process. The manuscript describes the following steps involved in this process: Clinical topic selection, Evidence‐hased review assignment, Literature review and initial manuscript preparation, Iterative review process with author selection, and Manuscript finalization.Results:The goal of this article is to improve efficiency and increase the production of evidence‐based reviews while maintaining the high quality and transparency associated with the rigorous methodology utilized for clinical guideline development.Conclusion:With the rise of evidence‐based medicine, most medical and surgical specialties have an abundance of clinical topics which would benefit from a formal evidence‐based review. Although clinical guideline development is an important methodology, the associated challenges limit development to only the absolute highest priority clinical topics. As outlined in this article, the online iterative approach to the development of an Evidence‐based Review with Recommendations may improve productivity without compromising the quality associated with formal guideline development methodology. © 2011 ARS‐AAOA, LLC.
Synthesis and selected properties of polyurethanes with monodisperse hard segments based on hexane diisocyanate and three types of chain extenders
Authors: Biemond G. J. E. , Brasspenning K. , Gaymans R. J. 
Published: October 2011

AbstractPoly(tetramethylene oxide)‐based segmented polyurethanes were synthesized by the chain extension of a poly(tetramethylene oxide) with a length of 1270 g/mol that was end‐capped with 1,6‐hexane diisocyanate. Three types of uniform chain extenders were used: a diamine diamide, a diol diamide, and a diol diester. The concentration of the monodisperse hard segments was approximately 32 wt %, and the materials were clear and tough. The polyurethanes with monodisperse hard segments were subsequently characterized with differential scanning calorimetry, dynamic mechanical thermal analysis, and compression set measurements and were found to display low glass‐transition temperatures, an almost temperature‐independent rubbery plateau, and sharp melting temperatures. The rate of crystallization (melting temperature − crystallization temperature) was moderately fast (36–54°C). Moreover, the melting temperature of the polyurethanes increased with the number of hydrogen‐bonding groups in the hard segment, whereas the modulus at room temperature was more dependent on the structural regularity of the extender. The best elastic properties were found for the materials extended with the diamine diamide. Finally, an interesting combination of properties was revealed for the polyurethane with a diol diamide extender based on aminopropanol. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012
Preparation and morphology of transparent poly(methyl methacrylate)–poly(dimethylsiloxane) hybrid materials using multifunctional silicone macromonomer
Authors: Sugimoto Hideki , Nishino Go , Koyama Haruki , Daimatsu Kazuki , Inomata Katsuhiro , Nakanishi Eiji 
Published: October 2011

AbstractIn this study, transparent poly(methylmethacrylate) (PMMA)‐silicone hybrid materials, P(MMA‐co‐SigUMAx), were prepared with methylmethacrylate (MMA) and multifunctional silicone macromonomer introduced methacryl groups. The transmittance of hybrid materials improved with increase of methacryl groups of silicone macromonomer and reached around 90% T. Atomic force microscopic analysis, scanning electron microscope examinations, and copolymerization kinetics estimation by proton nuclear magnetic resonance revealed that the silicone macromonomer randomly incorporated in the copolymer with MMA by the increase of methacryl groups and suppresses the aggregation of the silicone segment. The hybrid materials introduced over 10 wt % of silicone component had water‐shedding surface and the water contact angle was elevated from 65 to 95°. Though the mechanical properties of hybrid materials were lowered by introduction of flexible silicone component, thermal property such as 5 wt % weight loss temperature were improved. © 2011 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2012