2,218 research outputs found

    Compositional Strategies in Popular Song Form of the Early Twentieth Century

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    Popular song at the beginning of the twentieth century exhibited several new tendencies that, over time, became audience favorites. A new type of rude song, with syncopated melodies and vernacular lyrics (called by the unsavory term “coon song”), took audiences by storm. The general form used in the earlier songs—verse/chorus—still provided the basic structure. But the harmonies and internal structure of both sections moved in a new direction. As the popular music of Tin Pan Alley developed, song composers looked for new ways to vary the basic harmonic progressions in phrases that usually spanned eight measures. Among the variety of new forms was one—AABA—that would prove important to the future of popular song. In this paper, I explore the expansion of harmonic possibilities that took place in the chorus with the adoption of the AABA form during the late 1910s and ’20s. I have chosen songs from Broadway shows and film musicals (by Berlin, Burke, Gershwin, Henderson, Rodgers, Waller, and Warren) that demonstrate how composers began to move away from the basic dominant and subdominant alternations to explore increasingly complex strategies in the harmonic progressions that comprise the release (i.e., bridge) sections of the chorus. These explorations proved fruitful to the development of the form and provided a foundation for the introduction of chromatic progressions that evolved in the 1930s. This article is part of a special, serialized feature: A Music-Theoretical Matrix: Essays in Honor of Allen Forte (Part V)

    First identification of a chemotactic receptor in an invertebrate species: Structural and functional characterization of Ciona intestinalis C3a receptor

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    In mammals, the bioactive fragment C3a, released from C3 during complement activation, is a potent mediator of inflammatory reactions and exerts its functional activity through the specific binding to cell surface G protein-coupled seven-transmembrane receptors. Recently, we demonstrated a Ciona intestinalis C3a (CiC3a)-mediated chemotaxis of hemocytes in the deuterostome invertebrate Ciona intestinalis and suggested an important role for this molecule in inflammatory processes. In the present work, we have cloned and characterized the receptor molecule involved in the CiC3a-mediated chemotaxis and studied its expression profile. The sequence, encoding a 95,394 Da seven-transmembrane domain protein, shows the highest sequence homology with mammalian C3aRs. Northern blot analysis revealed that the CiC3aR is expressed abundantly in the heart and neural complex and to a lesser extent in the ovaries, hemocytes, and larvae. Three polyclonal Abs raised in rabbits against peptides corresponding to CiC3aR regions of the first and second extracellular loop and of the third intracellular loop react specifically in Western blotting with a single band of 98–102 kDa in hemocyte protein extracts. Immunostaining performed on circulating hemocytes with the three specific Abs revealed that CiC3aR is constitutively expressed only in hyaline and granular amoebocytes. In chemotaxis experiments, the Abs against the first and second extracellular loop inhibited directional migration of hemocytes toward the synthetic peptide reproducing the CiC3a C-terminal sequence, thus providing the compelling evidence that C. intestinalis expresses a functional C3aR homologous to the mammalian receptor. These findings further elucidate the evolutionary origin of the vertebrate complement-mediated proinflammatory process

    Implementation of a community-based exercise program for Parkinson patients: using boxing as an example

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    Background: Persons with Parkinson’s disease (PD) benefit from continuous exercise through participation in community-based exercise programs. However, community programs often lack PD-specific knowledge needed to provide safe and adequately dosed exercise.Objective: To evaluate the acceptability and safety of a PD-specific boxing program in the community.Methods:We developed specific educational resources to facilitate the boxing instructors.We also organized an educational and practicalworkshop for patients (n = 26) and instructors (n = 10), and assessed: (a) participants’ satisfaction; (b) instructors’ appreciation of the educational resources; and (c) numbers of patients interested in participating in the boxing program. After 18 months, patients and instructors completed a questionnaire evaluating: (a) participants’ satisfaction; (b) adverse events; (c) facilitators and barriers; and (d) proportion of participants at follow-up.Results: Twenty-six persons with PD (62% men) and 10 boxing instructors participated in the workshop. 81% of patients and 80% of instructors were very satisfied. Instructors found the educational materials “very helpful” (60%) or “helpful” (40%). Patients expressed a clear interest (54%) or possible interest (46%) in the program.We initiated classes with 10 participants. At 18-months follow-up, the program consisted of four boxing sessions/week, led by three instructors, with 40 participants. Seventeen patients responded to the questionnaire at follow-up. Participants were “very satisfied” (53%), “satisfied” (35%) and neither satisfied nor unsatisfied (12%) with the program. Adverse effects were mild (e.g., muscle aches). Transportation and physical disability were the main barriers for participation.Conclusions: The boxing program was well-received, with increasing numbers of participants at 18 months. The educational resources can support boxing instructors participating in current and future boxing classes being delivered in the community.info:eu-repo/semantics/publishedVersio

    Impact of COVID-19-Related Lockdown on Psychosocial, Cognitive, and Functional Well-Being in Adults With Down Syndrome

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    People with Down Syndrome (DS) have a high prevalence of physical and psychiatric comorbidities and experience early-onset dementia. With the outbreak of CoVID-19 pandemic, strict social isolation measures have been necessary to prevent the spreading of the disease. Effects of this lockdown period on behavior, mood and cognition in people with DS have not been assessed so far. In the present clinical study, we investigated the impact of CoVID-19-related lockdown on psychosocial, cognitive and functional well-being in a sample population of 46 adults with DS. The interRAI Intellectual Disability standardized assessment instrument, which includes measures of social withdrawal, functional impairment, aggressive behavior and depressive symptoms, was used to perform a three time-point evaluation (two pre-lockdown and one post-lockdown) in 37 subjects of the study sample, and a two time point evaluation (one pre- and one post-lockdown) in 9 subjects. Two mixed linear regression models - one before and one after the lockdown - have been fitted for each scale in order to investigate the change in the time-dependent variation of the scores. In the pre-lockdown period, significant worsening over time (i.e., per year) was found for the Depression Rating Scale score (beta = 0.55; 95% CI 0.34; 0.76). In the post-lockdown period, a significant worsening in social withdrawal (beta = 3.05, 95% CI 0.39; 5.70), instrumental activities of daily living (beta = 1.13, 95% CI 0.08; 2.18) and depression rating (beta = 1.65, 95% CI 0.33; 2.97) scales scores was observed, as was a significant improvement in aggressive behavior (beta = -1.40, 95% CI -2.69; -0.10). Despite the undoubtful importance of the lockdown in order to reduce the spreading of the CoVID-19 pandemic, the related social isolation measures suggest an exacerbation of depressive symptoms and a worsening in functional status in a sample of adults with DS. At the opposite, aggressive behavior was reduced after the lockdown period. This finding could be related to the increase of negative and depressive symptoms in the study population. Studies with longer follow-up period are needed to assess persistence of these effects

    Polyakov Lines in Yang-Mills Matrix Models

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    We study the Polyakov line in Yang-Mills matrix models, which include the IKKT model of IIB string theory. For the gauge group SU(2) we give the exact formulae in the form of integral representations which are convenient for finding the asymptotic behaviour. For the SU(N) bosonic models we prove upper bounds which decay as a power law at large momentum p. We argue that these capture the full asymptotic behaviour. We also indicate how to extend the results to some correlation functions of Polyakov lines.Comment: 19 pages, v2 typos corrected, v3 ref adde
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