Global Well-posedness And Symmetries For Dissipative Active Scalar Equations With Positive-order Couplings

We consider a family of dissipative active scalar equations outside the L-2-space. This was introduced in [7] and its velocity fields are coupled with the active scalar via a class of multiplier operators which morally behave as derivatives of positive order. We prove global well-posedness and time-decay of solutions, without smallness assumptions, for initial data belonging to the critical Lebesgue space Ln/2 gamma-beta(R-n) which is a class larger than that of the above reference. Symmetry properties of solutions are investigated depending on the symmetry of initial data and coupling operators.6052555

Management of severe Class II malocclusion with sequential removable functional and orthodontic appliances: a case for MorthRCSEd examination

INTRODUCTION: Functional appliances are an effective way of treating skeletal Class II malocclusion in children and adolescents. A 12 month step-wise mandibular advancement protocol has been proved to enhance the condylar growth and improve the mandibular prognathism using Herbst appliance. OBJECTIVES: The following case report documented a 11 year-old Chinese girl with 11 mm overjet treated by a Phase I 12-month growth modification therapy using Twin Block appliance with Hyrax palatal expander and high pull headgear in a step-wise mandibular advancement protocol followed by a Phase II preadjusted Edgewise appliance therapy. This is one of the cases submitted for the Membership of Orthodontics Examination of the Royal College of Surgeons of Edinburgh.published_or_final_versio

The driving forces of customer loyalty : a study of Internet service providers in Hong Kong

2007-2008 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe

Clinical effect of a topical herbal ointment on pain in temporomandibular disorders: A randomized placebo-controlled trial

Objectives: The aim of this study was to compare the effectiveness of using Ping On ointment and using petroleum jelly in the treatment of temporomandibular joint (TMJ) and masticatory muscle pain, in order to establish the true efficacy of Ping On ointment. Methods: In this randomized, double-blinded, placebo-controlled trial, 55 subjects with TMJ and/or masticatory pain (Group I patients according to the Research Diagnostic Criteria for Temporomandibular Disorder (RDC/TMD) received Ping On ointment for 4 weeks, or placebo for 4 weeks. Subjects were evaluated with standard measures of efficacy: pain intensity measured by visual analogue scale and maximal comfortable mandibular opening, at baseline and again after 4 weeks of treatment. Results: Ping On ointment significantly reduced the symptoms of painful TMJs and/or masticatory muscles. Maximal comfortable mandibular opening also improved in the Ping On ointment group compared with the placebo, but was not clinically significant. Conclusions: This preliminary study suggests that topical application of Ping On ointment may be considered for further investigation as a potential first-line treatment modality, before prescribing analgesics, for the management of TMDs. It is topically applied, safe, reversible, and effective in managing TMDs and masticatory muscle pain. © 2009, Mary Ann Liebert, Inc.published_or_final_versio

Análise da postura cranio-cervical em pacientes com disfunção temporomandibular

OBJECTIVE: To compare head positioning and cervical spine alignment between individuals with and without temporomandibular disorders (TMDs), by means of positional evaluation using photographs, radiographs and visual observation, and to investigate whether the type of TMD influences head posture and cervical spine positioning. METHODS: Ninety randomly chosen women were diagnosed using the research diagnostic criteria for TMDs (RDC/TMD) by a trained examiner and were divided into three groups: Group 1, with a diagnosis of myofascial dysfunction (group I of RDC axis I); Group 2, with mixed TMD (groups I, II and III of RDC axis I); and Control, without TMD. Following this, the participants were photographed in frontal and lateral views by a single examiner. To produce these photos, the following anatomical points were marked out on the skin: occipital protuberance, C4, C7, acromioclavicular joint and sternoclavicular joint. From these points, different angles were analyzed by means of the ALCimagem-2000 application. These same photos were then evaluated qualitatively (visual evaluation). Next, lateral teleradiography and radiography of the cervical spine was requested. The examiner was blind when analyzing the images. To compare the results, the chi-squared test and analysis of variance were used, with significance levels of 5%. RESULTS: Regardless of the method used, the results revealed that head and cervical spine posture did not differ between the groups with and without TMD, independent of the diagnostic group. CONCLUSION: The posture of individuals with myogenic or arthrogenous TMD does not differ from the posture of individuals without TMD. The presence of TMD does not influence the head and cervical spine posture.OBJETIVO: Comparar o posicionamento da cabeça e o alinhamento da coluna cervical em indivíduos com e sem DTM, por meio da avaliação postural por fotografias, radiografias e por observação visual e verificar se o tipo de DTM influencia na postura da cabeça e no posicionamento da coluna cervical. MÉTODOS: Noventa mulheres escolhidas aleatoriamente foram diagnosticadas por meio dos Critérios para Diagnóstico em Pesquisa para Disfunções Temporomandibulares (RDC/TMD) por um examinador treinado e divididas em três grupos: grupo 1, diagnóstico de disfunção miofascial (grupo I do eixo I do RDC); grupo 2, com DTM mista (grupo I, II e III do eixo I do RDC) e controle, sem DTM . Em seguida, foram fotografadas em vista anterior e em perfil por um único examinador. Para a realização dessas fotografias, foram demarcados sobre a pele os seguintes pontos anatômicos: protuberância occiptal, C4, C7, articulação acromioclavicular e esternoclavicular. A partir desses pontos, foram analisados diferentes ângulos por meio do aplicativo ALCimagem-2000. Essas mesmas fotos foram posteriormente avaliadas qualitativamente (avaliação visual). Em seguida, foi solicitada uma radiografia e uma telerradiografia em perfil. O examinador foi cego ao analisar as imagens. Para comparação dos resultados, foi utilizado o teste qui-quadrado e a análise de variância com nível de significância de 5%. RESULTADOS: Independentemente do método utilizado, os resultados revelaram que a postura da cabeça e da coluna cervical não diferem entre o grupo com DTM e sem DTM, independentemente do grupo diagnosticado. CONCLUSÃO: A postura do indivíduo com DTM miogênica ou artrogênica não é diferente do indivíduo sem DTM. A presença da DTM não influencia na postura da cabeça e da coluna cervical

ON THE STABILITY PROBLEM FOR THE BOUSSINESQ EQUATIONS IN WEAK-L-p SPACES

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)We consider the Boussinesq equations in either an exterior domain in R-n, the whole space R-n, the half space R-+(n) or a bounded domain in R-n, where the dimension n satisfies n >= 3. We give a class of stable steady solutions, which improves and complements the previous stability results. Our results give a complete answer to the stability problem for the Boussinesq equations in weak-L-p spaces, in the sense that we only assume that the stable steady solution belongs to scaling invariant class L-sigma((n, infinity)) x L-(n,L- infinity). Moreover, some considerations about the exponential decay (in bounded domains) and the uniqueness of the disturbance are done.93667684Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq

Ab-initio Reaction Calculations for Carbon-12 (ESP Technical Report): ALCF-2 Early Science Program Technical Report

Report about the Ab-initio Reaction Calculations for Carbon-12 (ESP Technical Report): ALCF-2 Early Science Program Technical Repor

Argonne Leadership Computing Facility 2011 annual report : Shaping future supercomputing.

The ALCF's Early Science Program aims to prepare key applications for the architecture and scale of Mira and to solidify libraries and infrastructure that will pave the way for other future production applications. Two billion core-hours have been allocated to 16 Early Science projects on Mira. The projects, in addition to promising delivery of exciting new science, are all based on state-of-the-art, petascale, parallel applications. The project teams, in collaboration with ALCF staff and IBM, have undertaken intensive efforts to adapt their software to take advantage of Mira's Blue Gene/Q architecture, which, in a number of ways, is a precursor to future high-performance-computing architecture. The Argonne Leadership Computing Facility (ALCF) enables transformative science that solves some of the most difficult challenges in biology, chemistry, energy, climate, materials, physics, and other scientific realms. Users partnering with ALCF staff have reached research milestones previously unattainable, due to the ALCF's world-class supercomputing resources and expertise in computation science. In 2011, the ALCF's commitment to providing outstanding science and leadership-class resources was honored with several prestigious awards. Research on multiscale brain blood flow simulations was named a Gordon Bell Prize finalist. Intrepid, the ALCF's BG/P system, ranked No. 1 on the Graph 500 list for the second consecutive year. The next-generation BG/Q prototype again topped the Green500 list. Skilled experts at the ALCF enable researchers to conduct breakthrough science on the Blue Gene system in key ways. The Catalyst Team matches project PIs with experienced computational scientists to maximize and accelerate research in their specific scientific domains. The Performance Engineering Team facilitates the effective use of applications on the Blue Gene system by assessing and improving the algorithms used by applications and the techniques used to implement those algorithms. The Data Analytics and Visualization Team lends expertise in tools and methods for high-performance, post-processing of large datasets, interactive data exploration, batch visualization, and production visualization. The Operations Team ensures that system hardware and software work reliably and optimally; system tools are matched to the unique system architectures and scale of ALCF resources; the entire system software stack works smoothly together; and I/O performance issues, bug fixes, and requests for system software are addressed. The User Services and Outreach Team offers frontline services and support to existing and potential ALCF users. The team also provides marketing and outreach to users, DOE, and the broader community