1,796 research outputs found

    Integrative Sonic Urbanism: Artist-Led Strategies for Urban Sound Design in the Contemporary City

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    This doctoral research advances the fields of urban sound design and acoustic planning, presenting new ways of exploring the interrelationship between individual and collective sonic experience, the dynamic potential of the urban sound environment and the complex evolution of the contemporary cityscape. It links urban sound art practices with larger urban design processes, revealing how sound contributes to the production of urban space. The research progresses by crafting a dynamic, integrative methodology that activates contrasting sonic perspectives to critically reassess the role of sound in the public realm. As it discloses this methodology, the research navigates the tension between new modes of urban sound design guided by critical artistic practice and more conventional strategies rooted in the paradigm of environmental noise. Efforts to address urban sonic conditions through quantifiable metrics are contextualised within a wider transition in which urban form is increasingly influenced by data capture, analysis and governance. Within this transition, the critical potential of sound as an active component of urban space is obscured by remedial strategies established to improve what are construed as unfavourable conditions. This research analyses the relationship between these remedial strategies, the emergence of the ISO soundscape standard and the concepts of urban ambiances, urban atmospheres and acoustic territories. It postulates that these centralising conceptual models can serve to limit as well as to advance the critical potential of this field, pursuing instead a more tactical, performative and pluralistic methodology. The articulation of this methodology is substantiated through the exposition of three major public artworks developed by the author, including: Continuous Drift (2015–), a permanent sound installation in a public urban square; The Manual for Acoustic Planning and Urban Sound Design (2013–2020), an artist placement exploring the role of the acoustic planner within a local authority; and The Office for Common Sound (2016–), a project space that fosters dialogue concerning sound within specific regional and institutional contexts. These projects expand the role of artistic practice within the context of urban design and spatial planning by activating the field of urban sound design within diverse spatial, administrative and social contexts. These projects extend established methodologies drawn from sound art, site-specific art and sound installation practices with tactics inherited from public, participatory and socially engaged art, demonstrating how artist-led strategies for urban sound design can advance new forms of spatial production through collaboration with diverse urban actors

    Kas Ôppimist toetav hindamine on Ôiglane? Deskriptiivne vaade Ôigluse tajumisele

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    KĂ€esoleva bakalaureuse töö kontekstis uurin vĂ€ga kitsalt piiritletult Ă”ppimist toetavat hindamist Ă”igluse (inglise keeles: justice) haridusfilosoofia raames. Õppimist toetav hindamine on mitmetĂ€henduslik sĂ”na. Eesti keeles on Ă”ppimist toetava hindamise sĂŒnonĂŒĂŒmideks veel Ă”pilaslĂ€hedane hindamine, klassiruumi/klassikeskkonnahindamine, koolihindamine, sisehindamine. Sisuliselt tĂ€hendab Ă”ppimist toetav hindamine lĂŒhidalt, et hindeid pannakse, et aidata Ă”pilastel jĂ”uda paremini eduka Ă”pitulemuseni. Õppimist toetava hindamise teoorias pĂ”hinen enamasti Black ja Wiliam`i kirjutatule. Õiglase hindamise temaatikat ei ole kĂ€esoleva töö autori kohaselt varem pĂ”hjalikult uuritud. Sellest tulenevalt ei ole vĂ”imalik leida laiapĂ”hist temaatilist kirjandust. Õppimist toetav hindamine on Eestis ja maailmas vĂ€ga levinud ning palju poolehoidu leidnud suund (JĂŒrimĂ€e, et al., 2014). Sellele vaatamata leitakse, et Ă”ppimist toetav hindamine ei ole parim lahendus paremate Ă”pitulemuste saavutamiseks (Dunn & Mulvenon, 2009).http://www.ester.ee/record=b4495826*es

    The E-ARK Data Mining Showcase

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    This report focuses on recent developments that support the deployment of the IPRIP in different configurations at E-ARK stakeholder sites. These configurations are specifically targeting the processing of E-ARK Archival Information Packages (AIPs), as detailed in D4.4 Part A. A flexible packaging mechanism combined with a standalone backend implementation enables custom single-server deployments on demand. Work on the single-server deployment has been carried out jointly with WP4 in the context of the E-ARK Web project. For a detailed description of the E-ARK Web SIP to AIP conversion component, the reader is referred to deliverable D4.4 Part B

    Evaluation of an automated enzyme-linked fluorescent assay for thyroxine measurement in cat and dog sera

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    Measurement of total thyroxine (T4) is the first testing step in the work-up of thyroid disease in small animals. We evaluated an enzyme-linked fluorescent assay (ELFA) as an in-house method to measure T4 in cats and dogs. We compared the T4 concentration in sera of 122 cats and 176 dogs measured by the ELFA with an enzyme immunoassay (EIA) to assess the concordance of the 2 methods. Bias of the ELFA in cats was -11.4% and in dogs 1.4%. Using Bland-Altman plots, limits of agreement were -81.5 to 58.7% in cats and -71.4 to 74.4% in dogs. Imprecision was calculated for both methods. Intra- and interassay coefficients of variation (CVs) of the ELFA in feline sera were 0.7 and 3.4% and of the EIA 7.6 and 15.7%, respectively. Intra- and interassay CVs of both ELFA and EIA in canine sera were <9.5%. Reference intervals for the ELFA method were established and were 13.3-49.5 nmol/L for cats and 10.1-42.9 nmol/L for dogs. Accuracy of the EIA and ELFA was scored by assessing if the measured T4 value would identify the expected T4 range (low, normal, or elevated) of patients, based on history, clinical presentation, other diagnostic means, and response to therapy. This was possible for 75 cats and 50 dogs. Both methods yielded acceptable results, but the EIA was more accurate compared to the ELFA (percentage of true-positives in cats and dogs: EIA: 97% and 100%; ELFA: 92% and 94%)

    Mortality in patients with successful initial response to highly active antiretroviral therapy is still higher than in non-HIV-infected individuals.

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    Mortality in HIV-infected patients has decreased dramatically since the introduction of highly active antiretroviral therapy (HAART). We analyzed progression to death in a population of 3678 antiretroviral treatment-naive patients from the ATHENA national observational cohort from 24 weeks after the start of HAART. Mortality was compared with that in the general population in the Netherlands matched by age and gender. Only log-transformed CD4 cell count (hazard ratio [HR] = 0.50, 95% confidence interval [CI]: 0.40 to 0.61 per unit increase) and plasma viral load (HR = 0.30, 95% CI: 0.15 to 0.60, HIV RNA level or = 100,000 copies/mL) measured at 24 weeks and infection via intravenous drug use (IDU) (HR = 0.16, 95% CI: 0.10 to 0.26, non-IDU vs. IDU) were significantly associated with progression to death. For non-IDU patients with 600 x 10 CD4 cells/L and an HIV RNA level <100,000 copies/mL at 24 weeks, mortality was predicted to be 5.3 (95% CI: 3.5 to 8.4) and 10.4 (95% CI: 6.4 to 17.4) times higher than in the general population for 25-year-old men and women, respectively, and 1.15 (95% CI: 1.08 to 1.25) and 1.29 (95% CI: 1.16 to 1.50) times higher for 65-year-old men and women, respectively. Hence, mortality in HIV-infected patients with a good initial response to HAART is still higher than in the general population

    Bose-Einstein condensation of chromium

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    We report on the generation of a Bose-Einstein condensate in a gas of chromium atoms, which will make studies of the effects of anisotropic long-range interactions in degenerate quantum gases possible. The preparation of the chromium condensate requires novel cooling strategies that are adapted to its special electronic and magnetic properties. The final step to reach quantum degeneracy is forced evaporative cooling of 52Cr atoms within a crossed optical dipole trap. At a critical temperature of T~700nK, we observe Bose-Einstein condensation by the appearance of a two-component velocity distribution. Released from an anisotropic trap, the condensate expands with an inversion of the aspect ratio. We observe critical behavior of the condensate fraction as a function of temperature and more than 50,000 condensed 52Cr atoms.Comment: 4 pages, 4 figure

    Entwicklung eines Tests zur Lernverlaufsdiagnostik mit schwierigkeitsgenerierenden Merkmalen. Ein Beispiel fĂŒr die Diagnose grundlegender arithmetischer Fertigkeiten in der Grundschule

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    This study investigates difficulty-generating item characteristics (DGICs) in the context of basic arithmetic operations for numbers up to 100 to illustrate their use in item-generating systems for learning progress monitoring (LPM). The fundament of the item-generating system is based on three theory-based DGICs: arithmetic operation, the necessity of crossing 10, and the number of second-term digits. The Rasch model (RM) and the linear logistic test model (LLTM) were used to estimate and predict the DGICs. The results indicate that under the LLTM approach all of the three hypothesized DGICs were significant predictors of item difficulty. Furthermore, the DGICs explain with 20% a solid part of the variance of the RM’s item parameters. The identification and verification of the DGICs under the LLTM approach provide important insights into how to address the challenges in the development of future LPM tests in mathematics. (DIPF/Orig.)Diese Studie untersucht den Einfluss schwierigkeitsgenerierender Merkmale fĂŒr die Gestaltung von Items zur Lernverlaufsdiagnostik arithmetischer Basiskompetenzen im Zahlenraum bis 100. Das System zur Itemkonstruktion basiert dabei auf drei theoriegeleiteten schwierigkeitsgenerierenden Merkmalen: der verwendeten arithmetischen Operation, der Notwendigkeit des ZehnerĂŒbergangs, und der Stellenanzahl des zweiten Terms. Zur SchĂ€tzung und Vorhersage der Itemparameter wurden das Rasch-Modell (RM) und das linear-logistische Testmodell (LLTM) verwendet. Die Ergebnisse des LLTM-Ansatzes deuten darauf hin, dass alle drei vermuteten schwierigkeitsgenerierenden Merkmale signifikante PrĂ€diktoren fĂŒr die Itemschwierigkeit sind. Basierend auf den drei schwierigkeitsgenerierenden Merkmalen konnten 20% der Varianz der Itemschwierigkeitsparameter des RM erklĂ€rt werden. Diese Studie verdeutlicht, dass die Identifikation und PrĂŒfung schwierigkeitsgenerierender Merkmale wichtige Erkenntnisse liefern, wie Herausforderungen bei der Entwicklung zukĂŒnftiger Tests zur Lernverlaufsdiagnostik in Mathematik berĂŒcksichtigt werden können. (DIPF/Orig.

    ZasM10-LevumiN1. Tests zu Rechenoperationen zur Lernverlaufsdiagnostik - „Zahlen addieren und subtrahieren (Zahlenraum 10)“ der Onlineplattform www.levumi.de

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    Die Onlineplattform Levumi (www.levumi.de; Gebhardt, Diehl & MĂŒhling, 2016) bietet Tests zur Lernverlaufsdiagnostik in den Lernbereichen Lesen (Jungjohann, Diehl et al., 2018; Jungjohann, DeVries et al., 2018), Rechtschreiben (Jungjohann et al., 2019) sowie Mathematik. Alle Tests können als Basis fĂŒr eine datenbasierte Förderplanung und zur Gestaltung von adaptiven Förderungen auch im inklusiven Unterricht genutzt werden (Anderson et al., 2021; Jungjohann et al., 2021). Der Bereich Mathematik ist um das Testverfahren Zahlen addieren und subtrahieren (Zahlenraum 1 – 10) erweitert worden. Der Test beinhaltet Rechenaufgaben zur Addition und Subtraktion. Die Anforderung des Tests besteht jeweils darin, bei Additionsaufgaben im Zahlenraum bis 10 den Summenwert und bei Subtraktionsaufgaben den Differenzwert zu ermitteln. Im Folgenden wird ein kurzer Einblick in die Konzeption des Testverfahrens und deren Umsetzung auf der Onlineplattform Levumi gegeben. FĂŒr einen Einsatz als Printversion sind dem Dokument im Anhang drei parallele Testversionen angehĂ€ngt (Versionen 1–3)

    ZsM10-LevumiN1. Tests zu Rechenoperationen zur Lernverlaufsdiagnostik - „Zahlen subtrahieren (Zahlenraum 10)“ der Onlineplattform www.levumi.de

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    Die Onlineplattform Levumi (www.levumi.de; Gebhardt, Diehl & MĂŒhling, 2016) bietet Tests zur Lernverlaufsdiagnostik in den Lernbereichen Lesen (Jungjohann, Diehl et al., 2018; Jungjohann, DeVries et al., 2018), Rechtschreiben (Jungjohann et al., 2019) sowie Mathematik. Alle Tests können als Basis fĂŒr eine datenbasierte Förderplanung und zur Gestaltung von adaptiven Förderungen auch im inklusiven Unterricht genutzt werden (Anderson et al., 2021; Jungjohann et al., 2021). Der Bereich Mathematik ist um das Testverfahren Zahlen subtrahieren (Zahlenraum 1 – 10) erweitert worden. Der Test beinhaltet Rechenaufgaben zur Subtraktion. Die Anforderung des Tests besteht jeweils darin, bei Subtraktionsaufgaben im Zahlenraum bis 10 den Differenzwert zu ermitteln. Im Folgenden wird ein kurzer Einblick in die Konzeption des Testverfahrens und deren Umsetzung auf der Onlineplattform Levumi gegeben. FĂŒr einen Einsatz als Printversion sind dem Dokument im Anhang drei parallele Testversionen angehĂ€ngt (Versionen 1–3)

    ZsM10-LevumiN1. Tests zu Rechenoperationen zur Lernverlaufsdiagnostik - „Zahlen subtrahieren (Zahlenraum 10)“ der Onlineplattform www.levumi.de

    Get PDF
    Die Onlineplattform Levumi (www.levumi.de; Gebhardt, Diehl & MĂŒhling, 2016) bietet Tests zur Lernverlaufsdiagnostik in den Lernbereichen Lesen (Jungjohann, Diehl et al., 2018; Jungjohann, DeVries et al., 2018), Rechtschreiben (Jungjohann et al., 2019) sowie Mathematik. Alle Tests können als Basis fĂŒr eine datenbasierte Förderplanung und zur Gestaltung von adaptiven Förderungen auch im inklusiven Unterricht genutzt werden (Anderson et al., 2021; Jungjohann et al., 2021). Der Bereich Mathematik ist um das Testverfahren Zahlen subtrahieren (Zahlenraum 1 – 10) erweitert worden. Der Test beinhaltet Rechenaufgaben zur Subtraktion. Die Anforderung des Tests besteht jeweils darin, bei Subtraktionsaufgaben im Zahlenraum bis 10 den Differenzwert zu ermitteln. Im Folgenden wird ein kurzer Einblick in die Konzeption des Testverfahrens und deren Umsetzung auf der Onlineplattform Levumi gegeben. FĂŒr einen Einsatz als Printversion sind dem Dokument im Anhang drei parallele Testversionen angehĂ€ngt (Versionen 1–3)
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