694 research outputs found

    Phonological representations and repetition priming

    Get PDF
    An ubiquitous phenomenon in psychology is the `repetition effect': a repeated stimulus is processed better on the second occurrence than on the first. Yet, what counts as a repetition? When a spoken word is repeated, is it the acoustic shape or the linguistic type that matters? In the present study, we contrasted the contribution of acoustic and phonological features by using participants with different linguistic backgrounds: they came from two populations sharing a common vocabulary (Catalan) yet possessing different phonemic systems. They performed a lexical decision task with lists containing words that were repeated verbatim, as well as words that were repeated with one phonetic feature changed. The feature changes were phonemic, i.e. linguistically relevant, for one population, but not for the other. The results revealed that the repetition effect was modulated by linguistic, not acoustic, similarity: it depended on the subjects' phonemic system

    La Edad de Oro del electroscopio

    Get PDF
    Es en verdad el electroscopio un instrumento de medición que se puede calificar como muy simple consta, en su versión más elemental, aquella que se presenta al comienzo de los textos básicos, para no aparecer nunca más en los capítulos siguientes, de dos livianas hojuelas de metal unidas por su parte superior, las cuales al ser cargadas con electricidad se repelen mutuamente. El valor del ángulo que forman brinda una idea sobre la cantidad de carga en juego. El todo viene dentro de una caja de metal, que aísla al elemento sensor de las influencias externas, provista de una ventana de cristal que evita las perturbaciones mecánicas de la atmósfera y permite observar las hojuelas

    El Tapiz de Euclides

    Get PDF
    El gran matemático Italiano Beppo Levi publicó en Resano en 1947 su libro "Leyendo a Euclides" De la lectura de esta magnífica obra y de nuestra práctica como ,docente en la cátedra de Epistemología e Historia de la Ciencia de la UNR surge este modesto trabajo, que se limita a tener aspiraciones didácticas, con que el autor pretende recordar la memoria del Ilustre fundador de las matemáticas superiores en el ámbito rosarino

    La transición de Enrique Gaviola hacia la Astrofísica

    Get PDF
    La Astronomía es reconocida como la primera ciencia, cuya formación se pierde en la noche de los tiempos cuando el hombre observaba entre temeroso y maravillado el tránsito de los astros. Es por otra parte opinión casi unánime que la Ciencia Moderna está claramente identificada con la Revolución Copernicana, con la obra del gran filósofo de la transición que fue Kepler, con el florentino que apuntó un anteojo hada el cielo, con la gran síntesis newtoniana. En la Argentina la Astronomía fue la primera de las ciencias exactas en lograr un nivel internacional

    Lead Job Generation

    Get PDF
    En el proyecto presente se ha diseñado e implementado un Sistema Gestor de Bases de Datos (SGBD) para facilitar al usuario, que es la persona que busca empleo, solicitar empleo, seguir sus procesos de selección y analizar la información que se genera durante la búsqueda de empleo. Los objetivos específicos del proyecto son los que se presentan a continuación. 1) Gestionar de forma eficiente toda la información que se genera en las solicitudes de empleo y en los posteriores procesos de selección. 2) Permitir llevar el control al usuario de sus solicitudes de empleo y de los procesos de selección en los que está implicado. 3) Integrar en un único entorno todo lo necesario para solicitar empleo, controlar los procesos de selección y analizar los datos que se generan en la búsqueda de empleo. 4) Crear una base de datos con la toda información que genera el usuario durante la búsqueda de empleo. Una vez identificadas las necesidades de los usuarios, el primer paso del proyecto fue realizar un diseño para el SGBD que asumiera todos los objetivos presentados. Este se realizó siguiendo un modelo de datos relacional y consiste en un diseño conceptual y un diseño lógico. El diseño físico se ha realizado mediante Microsoft Access e instrucciones en SQL. Una vez implementado el SGBD, el principal logro incide en la capacidad que tiene éste para registrar la actividad del usuario durante la búsqueda de empleo. Esto permite que el usuario pueda consultar y controlar de forma ágil y sencilla sus solicitudes y gracias a un cuadro de mando, incluido en el propio SGBD, el usuario puede tomar decisiones en base a los resultados que va obteniendo. Una vez analizado el potencial de la aplicación se plantean posibles utilizaciones de ésta al margen del uso de forma individual por el usuario. Un sector donde podría tener una gran aceptación sería el universitario. Un SGBD como el del proyecto presente permitiría a la universidad conocer al detalle que realizan sus estudiantes para buscar empleo y asesorarles en función de casos de éxito para orientar mucho mejor sus carreras profesionales

    Changing Sides: The Failure of the Wrestling Community’s Challenges to Title IX and New Strategies for Saving NCAA Sport Teams

    Get PDF
    The relationship of intercollegiate athletics and the federal Title IX statute has been the subject of significant concern and academic inquiry. This article explores the legal and legislative history of Title IX and the statute’s impact on intercollegiate athletic programs and practical solutions for compliance. The article is broken into three distinct parts. Part I details a brief history of Title IX congressional, judicial, and regulatory involvement/enforcement over the past 36 years. Part II examines Title IX’s application in practice with regard to public institutions and athletics. In Part III, the researchers present recommendations to wrestling programs and other men’s teams concerning the economic realities of intercollegiate athletics. Specifically the researchers examine the wrestling community’s legal and legislative challenges and explain how colleges’ economic decisions and zeal for competitive teams at the “revenue sports” level are at the core of wrestling’s dilemma rather than the law itself. The researchers also suggest more constructive solutions for preserving and expanding athletic opportunities for all without cutting men’s sports programs. In particular, they argue that instead of attacking Title IX and women’s sports, the wrestling community should form alliances with women’s teams and their advocates to reverse the reallocation of resources in the college athletics arms race

    Variability in L2 phonemic learning originates from speech-specific capabilities : an MMN study on late bilinguals

    Get PDF
    People differ in their ability to perceive second language (L2) sounds. In early bilinguals the variability in learning L2 phonemes stems from speech-specific capabilities (Díaz, Baus, Escera, Costa & Sebastián-Gallés, 2008). The present study addresses whether speech-specific capabilities similarly explain variability in late bilinguals. Event-related potentials were recorded (using a design similar to Díaz et al., 2008) in two groups of late Dutch-English bilinguals who were good or poor in overtly discriminating the L2 English vowels /[...]-æ/. The mismatch negativity, an index of discrimination sensitivity, was similar between the groups in conditions involving pure tones (of different length, frequency, and presentation order) but was attenuated in poor L2 perceivers for native, unknown, and L2 phonemes. These results suggest that variability in L2 phonemic learning originates from speech-specific capabilities and imply a continuity of L2 phonemic learning mechanisms throughout the lifespan.This work was supported by the People Programme (Marie Curie Actions) of the European Union’s Seventh Framework Programme (FP7/2007–2013) under REA grant agreement n° 32867 and a postdoctoral fellowship from the Spanish Government (Juan de la Cierva fellowship) to B.D., a Veni grant from the Netherlands Organisation for Scientific Research (NWO) toM.B., a grant from the European Community’s Seventh Framework Programme (FP7/2007- 2013): ERG grant agreement number 323961 (UNDER CONTROL) and Collaborative grant FP7-2013-613465 (ATHEME) to N.S.G. and by grants from the SpanishMinisterio de Economía y Competitividad (PSI 2012 – 34071; SEJ2009-09072) and the Catalan Government (SGR 2014–1210; SGR2009-11) awarded to N.S.G. and C.E. N.S.G. and C.E. received the prize ‘ICREA Acadèmia’ for excellence in research, funded by the Generalitat de Catalunya. The authors want to thank Xavier Mayoral for his technical support and Robert F. de Menezes for comments on the manuscript.peer-reviewe

    Feedback Control of Flight Speed to Reduce Unmanned Aerial System Noise

    Get PDF
    The aim of this initial study is to incorporate an acoustic metric into the flight control system of an unmanned aerial vehicle. This could be used to mitigate the noise impact of unmanned aerial systems operating near residential communities. To incorporate an acoustic metric into a pre-existing flight control system, two things are required: a source noise model, and an acoustic controller. An acoustic model was developed based on Gutin's work to estimate propeller noise. The flight control system was augmented with a controller to reduce propeller noise using feedback control of the commanded flight speed until an acoustic target was met. This control approach focuses on modifying flight speed only, with no perturbation to the trajectory. Multiple flight simulations were performed and the results showed that integrating an acoustic metric into the flight control system of an unmanned aerial system is possible

    VMED 589: Anesthesiology & Small Animal Surgery: Faculty-Led Inquiry into Reflective Scholarly Teaching (FIRST) Project

    Get PDF
    A Doctor of Veterinary Medicine degree requires a strong background in basic and clinical sciences. Clinical sciences are typically presented as laboratory-heavy courses, ideally with experiential learning components. Veterinary surgery and anesthesia are a high-stakes disciplines that requires a foundation of didactic instruction followed by repeated hands-on practice. VMED 589 Anesthesiology and Small Animal Surgery is the first course in anesthesia that students encounter in their four-year curriculum and the second course in surgery. It is designed to deliver the basic principles of anesthesia, followed by repetitive practice to ensure the safety of the veterinary patient. Anesthetic risk assessment, induction, maintenance, recovery, monitoring, problem-solving, domestic species’ differences, and legal record-keeping are covered. Many students find the anesthesia part of the curriculum to be the most challenging part of the class, as it involves the convergence of knowledge from several previous basic sciences courses in a short timeframe. Assessment for this course uses traditional exams consisting of multiple-choice questions (MCQs), post-anesthesia section exams for students before and after anesthesia, student surveys following Objective Structured Clinical Exams (OSCEs), and student reflections following anesthetic events. Student performance on traditional exams was comparable to previous years. Students\u27 performances on the post-anesthesia exam appeared to be affected by time since the last material but not by the experience of the anesthetic events. Students indicated satisfaction with the OSCEs and opportunities for preparation, and students also noted that they derived confidence from the ability to perform two anesthetic events as part of the class. This portfolio describes the anesthesia portion of VMED 589, including the design, implementation of materials, and outcomes of interest to identify strengths and areas for improvement
    corecore