2,315 research outputs found

    Toda Fields on Riemann Surfaces: remarks on the Miura transformation

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    We point out that the Miura transformation is related to a holomorphic foliation in a relative flag manifold over a Riemann Surface. Certain differential operators corresponding to a free field description of WW--algebras are thus interpreted as partial connections associated to the foliation.Comment: AmsLatex 1.1, 10 page

    The Phoenix Pluto Probe

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    A design proposal for an unmanned probe to Pluto is presented. The topics covered include: (1) scientific instrumentation; (2) mission management, planning, and costing; (3) power and propulsion system; (4) structural subsystem; (5) command, control, and communication; and (6) attitude and articulation control

    I nostri figli, le nostre scuole, il nostro futuro: la scuola del futuro parte dall’Aquila

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    Policy paper La scuola è luogo di cittadinanza, soprattutto in una città che ha bisogno di cittadini “nuovi”, consapevoli del passato e portatori di futuro. Le nuove generazioni hanno il diritto di formarsi in spazi sicuri e ben organizzati, che consentano lo sviluppo dei migliori processi di apprendimento ed insegnamento, di partecipazione, di socializzazione e di acquisizione di sensibilità, valori da spendere positivamente nella costruzione della città futura

    Exploring Autonomic Options in an Unified Fault Management Architecture through Reflex Reactions via Pulse Monitoring

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    This paper investigates the potential of adding Autonomic capabilities to the telecommunications fault management architecture and highlights the importance of a reflex-healing dual strategy to facilitate this advanced automation. The reflex reaction is facilitated through the concept of a pulse monitor -- essentially the extension of the fault tolerant heartbeat monitor mechanism to incorporate reflex urgency levels and health check summary information

    Entire curves avoiding given sets in C^n

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    Let FCnF\subset\Bbb C^n be a proper closed subset of Cn\Bbb C^n and ACnFA\subset\Bbb C^n\setminus F at most countable (n2n\geq 2). We give conditions of FF and AA, under which there exists a holomorphic immersion (or a proper holomorphic embedding) ϕ:CCn\phi:\Bbb C\to\Bbb C^n with Aϕ(C)CnFA\subset\phi(\Bbb C)\subset\Bbb C^n\setminus F.Comment: 10 page

    Strong asymptotics for Cauchy biorthogonal polynomials with application to the Cauchy two--matrix model

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    We apply the nonlinear steepest descent method to a class of 3x3 Riemann-Hilbert problems introduced in connection with the Cauchy two-matrix random model. The general case of two equilibrium measures supported on an arbitrary number of intervals is considered. In this case, we solve the Riemann-Hilbert problem for the outer parametrix in terms of sections of a spinorial line bundle on a three-sheeted Riemann surface of arbitrary genus and establish strong asymptotic results for the Cauchy biorthogonal polynomials.Comment: 31 pages, 12 figures. V2; typos corrected, added reference

    Trunk Control And Standing Tolerance Of A Patient With Paraparesis As A Result Of Transverse Myelitis And Mycotic Aneurysm Rupture: A Case Report

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    Background and Purpose: Transverse myelitis (TM) is a rare condition in which the spinal cord becomes inflamed resulting in pain, paraparesis or paraplegia, impaired sensation, and/or impaired autonomic function. Approximately two-thirds recover with mild to moderate symptoms, but one-third are left with severe and disabling symptoms. Cerebral mycotic aneurysm (CMA) rupture is a brain injury due to a burst artery resulting in diminished blood supply to the brain. There is literature on beneficial physical therapy (PT) intervention progressions following brain injury, such as bed mobility strategies and pre-gait activities, but there is little published on PT for impairments as a result of concurrent TM and CMA ruptures. The purpose of this case report was to describe the PT interventions provided to a patient with paraparesis as a result of TM and multiple CMA ruptures to progress toward achieving his goals of standing and ambulating with a standard walker and bilateral knee-ankle-foot-orthoses (KAFOs). Case Description: The 28-year-old male patient had been seen for two years at an outpatient clinic with an accredited brain injury program. The patient encountered several barriers throughout his rehabilitation, such as repairs to his KAFOs and low bone mineral density, which resulted in a decrease in standing tolerance over time. Outcomes: The Brain Injury Assessment Tool (BIAT) and manual muscle testing were used to document changes throughout the patient’s period of care. No significant changes were observed. Discussion: This patient, despite minimal improvements over a two-year period, may have the potential to increase his trunk control and standing tolerance if he has an extended period of time with no barriers to his rehabilitation
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