Search results for "Rhythm"
showing 10 items of 822 documents
Polymorphism and solvates of flecainide base
2013
Flecainide base is pharmaceutically active substance used for production of flecainide acetate which is known in market as Tambacor, Almarytm, Apocard, Ecrinal or Flecaine. It is determined that flecainide base forms four polymorphic forms abbreviated as Ib, IIb, IIIb and IVb. Flecainide base form Ib is thermodynamically stable form at laboratory temperature while form IIIb is stable at higher temperatures. Flecainide form Ib absorbs water in its structure between layers and forms non-stoichiometric hydrate. Flecainide base binds with organic solvents and form monosolvates. Flecainide base form Ib crystallizes in orthorhombic crystals with lattice parameters a = 27.88 Å, b = 13.78 Å, c = 9.…
Predictive Chaos Control for the 1D-map of Action Potential Duration
2016
International audience; In the present work, a nonlinear control method namely predictive controlis investigated. The proposed method allows stabilizing unstable period-1 rhythm.Using mathematical analysis and computer simulations, we show that this methodcan be used to control chaotic behavior or pathological rhythms. As example, theresults are illustrated in the case of the 1D-map action potential duration (APDi+1)which modelizes the cardiac action potential duration as the function of the previousone (APDi).
On listening to atonal variants of two Piano Sonatas by Beethoven
2009
International audience; We investigated the contribution of tonal relationships to the perception of musical ideas and to the feelings of "arousal." Two excerpts of piano sonatas by Beethoven and two atonal variants were used as experimental stimuli. This manipulation destroyed the tonal relationships but preserved both the local and global temporal organization (rhythm and formal). Listeners were asked to indicate the onset of musical ideas, to estimate the arousing properties of the music in a continuous response task, and to rate the similarity of the pieces. A drastic change in the pitch structure strongly affected judgments of similarity. However, it had no effect on the segmentation o…
Pentamidine rescues contractility and rhythmicity in a Drosophila model of myotonic dystrophy heart dysfunction
2015
Up to 80% of individuals with myotonic dystrophy type 1 (DM1) will develop cardiac abnormalities at some point during the progression of their disease, the most common of which is heart blockage of varying degrees. Such blockage is characterized by conduction defects and supraventricular and ventricular tachycardia, and carries a high risk of sudden cardiac death. Despite its importance, very few animal model studies have focused on the heart dysfunction in DM1. Here, we describe the characterization of the heart phenotype in a Drosophila model expressing pure expanded CUG repeats under the control of the cardiomyocyte-specific driver GMH5-Gal4. Morphologically, expression of 250 CUG repeat…
"Dis poem is still not written." A Study of Diamesic Variation in Jamaican Dub Poetry
2020
International audience; This paper looks at diamesic variation in the works of Jamaican and Anglo-Jamaican dub poets such as Linton Kwesi Johnson, Benjamin Zephaniah and Mutabaruka. Dub poetry constitutes a turning point in the history of literature in Creole, since the genre achieved to establish Patwa as the legitimate medium for Caribbean writers, thereby effectively inverting (post)colonial linguistic hierarchies. Though closely associated with the reggae tradition, dub poets have always claimed to be doing “real” literature and published their work in written form as well as in audio or video recordings. The paper analyses various strategies to inscribe orality and orature in written t…
“Sometimes I Wanda/Who Will Translate/Dis/Fe de Inglish?” Strategies for Transcribing Jamaican Creole in the Dub Poems of Linton Kwesi Johnson and Be…
2019
International audience; The question of dialect has always been central to Caribbean literature, and more specifically to poetry. In a (post)colonial context of diglossia between standard English and Jamaican Creole, and of a strong hierarchy between oral and scribal forms of linguistic and literary expression, the mere possibility of writing ‘real’ literature in Patwa was severely contested until quite recently. Yet, an increasing number of poets have experimented with Creole over the course of the last century and have amply demonstrated that it is a legitimate medium for poetic and literary expression.This paper looks at various strategies employed by Anglo-Jamaican dub poets Linton Kwes…
Para uma cooperação da escuta e do movimento: Estudo intercultural sobre a percepção dos ritmos tradicionais do Xangô (Olinda, PE)
2010
Combining musical cognition and ethnomusicological approaches, this article seeks to verify if the capacity of recognizing and actually doing the appropriate beat of musical rhythms after listening to musical excerpts is influenced by the movements of the body. We would like to show to what extent variables like "musical competence" ("musicians" and "non-musicians") and "cultural origin" ("Brazilians" and "French") do influence such capacity. We try to answer these questions by applying an experimental protocol designed for that end. The musical rhythms used in the experiment are drawn from the musical and religious traditions of the xangô african-brazilian cult, as they are practiced in Ol…
EEG Resting-State Functional Networks in Amnestic Mild Cognitive Impairment.
2022
Background. Alzheimer’s cognitive-behavioral syndrome is the result of impaired connectivity between nerve cells, due to misfolded proteins, which accumulate and disrupt specific brain networks. Electroencephalography, because of its excellent temporal resolution, is an optimal approach for assessing the communication between functionally related brain regions. O bjective. To detect and compare EEG resting-state networks (RSNs) in patients with amnesic mild cognitive impairment (aMCI), and healthy elderly (HE). Methods. We recruited 125 aMCI patients and 70 healthy elderly subjects. One hundred and twenty seconds of artifact-free EEG data were selected and compared between patients with aM…
Stress Assessment of Vestibular Endurance Training for Civil Aviation Flight Students Based on EEG
2021
AbstractObjectiveThe main goal of our study is to clarify the EEG characteristics of the stress response caused by vestibular endurance training under the real conditions.MethodsTen pilot trainees received a series of acute anti-vertigo training stimulations on the rotary ladder while recording electroencephalographic data (64 electrodes). Afterwards, the subject’s anti-vertigo ability was tested for the best performance after 1 month of training, and verifying whether it is relating to the EEG signals we collected before.Results(1) The absolute power ofαwaves in the C3 and C4 regions is same as the difference between 1 min before and 2 min after stimulation, and their activity is enhanced …
Effects of drug therapy on cardiac arrhythmias and ischemia in hypertensives with LVH.
2001
Left ventricular hypertrophy (LVH) in hypertensive subjects is associated with an increased prevalence of ventricular arrhythmias. To evaluate the effect of antihypertensive treatment on cardiac arrhythmias (CA) and transient episodes of myocardial ischemia (TEMI), we studied 46 hypertensive patients with LVH, divided into four groups randomly treated with enalapril, hydrochlorothiazide (HCTZ), atenolol, or verapamil (SR-V) for 6 months. Office blood pressure and office heart rate values were recorded, in basal conditions, after 1 and 6 months of treatment, and all patients underwent echocardiography, electrocardiographic Holter monitoring, and stress testing. All drugs significantly lowere…